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152 Cards in this Set
- Front
- Back
What are the two enlargements of the spinal cord and where are they found?
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cervical (c4-t1)
lumbar (t9-t12) |
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What are the general research categories of anatomy?
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gross (macro)
embryology (developmental) microscopic (histology) surface (topographical) |
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What percentage of bone matrix is water?
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15%
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4 types of tissues?
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epithelial
muscle nervous connective |
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What are the two subdivisions of the nervous system
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CNS, PNS
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Where is the conus medullaris found?
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L1-L2
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What are the 6 levels of structural organisation?
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chemicals
cells tissues organs systems organism |
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What percentage of bone matrix is collagen?
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30%
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4 possible physical states of tissues?
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solid, semisolid, liquid
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What are the main components of the PNS?
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Nerves, ganglia, sensory receptor, enteric plexus
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what is the filum terminale?
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a fibrous tissue that anchors the spinal cord to the coccyx
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What are the 11 systems of the human body?
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skeletal
muscular intergumentary nervous urinary digestive lymphatic respiratory cardiovascular reproductive endocrine |
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What percentage of bone matrix is crystallized mineral salts?
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55%
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Characteristics of epithelial tissues (ECM, nerve supply, blood supply)
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small amount of ECM
nervous no direct blood supply |
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What are the subdivisions of the PNS?
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Somatic, Autonomic, Enteric
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What is the collection of roots which extend inferiorly from the conus medullaris?
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the cauda equina
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What are the four cavities of the body with subcavities?
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Cranial
Vertebral Thoracic (pleural, pericardium, mediastinum) Abdominopelvic (abdominal, pelvic) |
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Name the three main components of bone matrix
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collagen, crystallized mineral salts, water
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Name the shapes of epithelial cells
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cuboidal, squamous, columnar, transitional
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What are the subdivisions of the autonomic motor PNS?
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Sympathetic, parasympathetic
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What are the meninges and what are the spaces around them?
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epidural
dura mater subdural arachnoid subarachnoid pia mater |
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What are the two ways to subdivide the abdominopelvic cavity?
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quadrants (left and right, upper and lower)
9 regions (left and right hypochondriac, epigastric, left and right lumbar, umbilical, left and right inguinal, hypogastric) |
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What are the main components of the crystallized mineral salts in bone matrix?
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calcium phosphate, calcium hydroxide and calcium carbonate. Also in the bone matrix are Mg, F, S04 and K
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Classify epithelial cells by layer type
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simple
stratified pseudostratified |
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What are the functions of the nervous system?
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sensory, integrative, motor
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What is found in the epidural space?
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fat, connective tissue
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Name the four types of bone cells
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Osteoclasts, osteoblasts, osteocytes, osteogenic cells
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Classify epithelial cells by function
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barrier (covering or lining)
glandular (secretion and absorption) |
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What are the structural classifications of neurons?
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(multi, uni, bi) polar
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What is found in the subdural space?
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interstitial fluid
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Where are osteogenic cells found?
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inner periosteum, endosteum and haversian canals
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Where are cuboidal epithelial cells found?
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ovaries, kidneys
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What are the functions of astrocytes?
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Structural support
blood-brain barrier secrete chemicals in embryo homeostasis of neuronal chemical environment of neurons role in learning and memory by influencing the formation of neural synapses |
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What is found in the subarachnoid space?
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CSF
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What is the function of osteocytes?
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Maintain metabolism - exchange of nutrients and wastes with blood
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Where are squamous epithelial cells found?
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lips, cervix
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What are the two types of astrocytes and where are they found?
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Fibrous - white matter
protoplasmic - grey matter |
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Which meningeal layer contains blood vessels?
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pia mater
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When does ossification start in the human body?
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Around 6 weeks
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Where are columnar epithelial cells found?
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respiratory system, digestive tract, female reproductive system
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What is the function of oligodendrocytes?
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Produce and maintain myelin sheath
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Where is CSF made?
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choroid plexus (ependymal cells)
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What are the two types of bone development?
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Intramembranous and Endochondral (more common)
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Where are transitional epithelial cells found?
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urinary bladder
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What is the function of microglia?
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phagocytosis of celllular debris
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How many pairs of spinal nerves are there in the human body? How many in each section?
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31
8, 12, 5, 5, 1 |
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What are the four stages of intermembranous ossification?
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Development of ossification centre
calcification formation of trabeculate development of periosteum |
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Where are simple epithelial cells found?
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kidneys, alveoli, blood vessels
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Which type of neuron has many dendrites?
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Multipolar
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What do dorsal roots carry?
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sensory APs
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What are the six stages of endochondral ossification?
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development of cartilage model
growth of cartilage model development of primary ossification centre development of medullary cavity development of secondary ossification centre formation of articular cartilage and epiphyseal plate |
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What is the main function of cuboidal epithelial cells?
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secretion and absorption, may have microvilli
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Which neurons are fused together to form a long chain?
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Unipolar
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What do ventral roots carry?
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motor APs
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Name the various components of osteons
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central (haversian) canal, lamellae, lacunae, osteocytes, canaliculi. Blood vessels, nerves and lymphatic vessels penetrate though perforating or volkmann's canals.
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What is the main function of squamous epithelial cells?
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rapid diffusion
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Where are bipolar neurons found?
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The eye, inner ear, and olfactory area
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Within the spinal cord, columns have a common _____ and a common _______
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origin and destination
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Flat bones, short bones and irregular bones are mostly formed of which type of bone?
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spongy
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What is the main function of columnar epithelial cells?
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protect tissues, may have cilia, microvilli
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Discuss the structure and function of ependymal cells
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Shape - cuboidal to columnar
Single layer have microvilli and cilia produce and monitor CSF |
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What does grey matter consist of?
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dendrites, cell bodies, axons and neuroglia
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How many bones in the axial and appendicular portion of the body?
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80- axial
126- appendicular |
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Where are stratified epithelial cells found?
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dorsum of tongue, hard palate, esophagus
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What purpose do Schwann cells have?
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produce myelin sheath, neurolemma
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Where is the central canal?
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Centrally located within the grey matter
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Name a couple of functions of sesamoid bones
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protect tendon, increase mechanical effect of tendon
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Where are pseudostratified epithelial cells found?
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trachea, respiratory system
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What do satellite cells do and where are they found?
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provide support and regulate the exchange of materials in the PNS
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What neurons do the posterior grey horns contain?
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sensory, interneurons
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Which hormones stimulate or regulate growth and from which gland do they originate?
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hGH - pituitary
t3, t4, calcitonin - thyroid PTH - parathyroid testosterone, estrogen - testes, ovaries, adrenal glands |
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What is the main function of simple epithelial cells?
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diffusion, secretion, absorption, osmosis, filtration
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What two types of synapses are found within the nervous system?
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Electrical (gap junction) and chemical
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What neurons do the anterior grey horns contain?
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motor
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What protein promotes growth in childhood? What does this protein do? Where is it produced?
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Insulin-like Growth Factors (IGFs)
promotes osteoblast function, cell division and enhances the synthesis of new proteins produced in response to hGH in the liver and bone tissues |
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Does connective tissue have nerve and blood supply?
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yes, except for cartilage
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Where are gap junctions found?
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heart, smooth muscle, brain
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What neurons do the lateral grey horns contain?
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autonomic regulation
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What hormones promote bone growth in childhood?
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Insulin (promotes protein synthesis)
T3 and T4 |
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Name the functions of connective tissue?
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storage of energy
protection of organs structural framework for the body |
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Name two advantages of gap junctions
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faster communication, synchronized
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True or false: thoracic spinal nerves pass over the vertebral body?
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false
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What are the two criteria for classifying joints?
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1. presence of space between joints
2. the type of connective tissue that holds the bones together |
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What are the main components of connective tissue?
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ECM, fibres, cells
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Describe the mechanism for chemical interneuronal transmission
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neurotransmitter, which is stored in synaptic bulbs and varicosities, is released and crosses the synaptic cleft to the postsynaptic dendrite
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What are the groupings within a nerve?
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neuron
endoneurium fascicle perineurium epineurium |
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Name the joint types
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Fibrous, cartilaginous and synovial
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What are the two main components of the ECM?
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ground substance, fibres
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What are the two types of axonal transport and what direction does each travel in?
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Slow - body to axonal terminals (anteriograde)
fast - both directions (retrograde and anteriograde) |
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What do the three nerve branches serve?
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anterior - muscles of upper and lower limbs, skin of lateral and anterior trunk
posterior - deep muscles and skin of posterior trunk meningeal - reenters vertebral cavity through intervertebral foramen |
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What are the three types of fibrous joints? Give an example of each
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Sutures - skull joints
syndesmones - gomphosis interosseus membranes - between ulna and radius |
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what are the possible states of ground substance?
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fluid, semifluid, gelatinous, calcified
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What is characteristic of perkinje neurons and where are they found?
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Many dendritic processes
cerebellum |
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What are the five spinal plexuses and what do they serve?
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Cervical (c1-4) - skin and muscles of the head-chest (contains phrenic nerve)
Brachial (c4-t1) - upper limbs and shoulders Lumbar (L1-4) - anterior lateral abdominal wall, external genital, part of lower limbs Sacral - buttocks, perineum, lower limbs Coccygeal - skin of that region |
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Name the two types of cartilaginous joints and give an example of each.
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Synchondroses (hyaline cartilage, no movement) - epiphyseal plates
Symphyses - pubic symphysis |
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What are the three fibre types?
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collagen, elastic, reticular (fine mesh)
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Where are pyramidal neurons found and why are they named as such?
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cerebral cortex
shape |
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Where does the sciatic nerve originate?
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L4-S3
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What are the components of a synovial joint?
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Articular cartilage (reduce friction, absorb shock), articular capsule (forms ligaments), synovial membrane
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What embryonic cells give rise to connective tissues?
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mesenchymal cells
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What are the factors for the speed of transmission in an axon?
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temperature
diameter of axon myelination |
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What does the sciatic nerve branch into?
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tibial and common fibular nerves, send branches to hamstring muscles and abductor magnus
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Name the classifications of synovial joints and give an example of each
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Planar (navicular-lateral cuneiform), saddle (carpal-metacarpal of thumb), ball-and-socket (ishial-femoral), pivot (atlanto-axial), hinge (humero-ulnar), condyloid (radio-carpal)
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What cells are commonly found in connective tissue?
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fibroblasts, macrophages, plasma cells, mast cells, adipocytes
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What are the steps for generation of APs?
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Presence of concentration and voltage gradient
cell body reaches threshold depolarization (Na channels) repolarization (K channels) hyperpolarization (Na/K pump) rest period |
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What happens if the phrenic nerve is severed?
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respiratory arrest
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What are the determinants of joint range of motion
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structure and shape of articulating surfaces
strength and tension of ligaments arrangement and tension of muscles contact of soft parts hormones amount of use |
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What are the 5 types of mature connective tissues?
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loose, dense, cartilage, bone, liquid
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Where is the phrenic nerve found?
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cervical plexus
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What are the types of fractures?
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Colles (distal end of radius)
Pott (distal end of fibula) comminuted impacted greenstick open (compound) stress |
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Areolar and adipose tissues fall into which category of connective tissues?
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Loose
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What is the largest lumbar nerve?
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femoral
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What are the three types of dense connective tissues? Give examples
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regular (tendons), irregular (dermis), and elastic (lung tissue, arteries)
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What is the largest nerve in the body?
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sciatic
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What are the three types of cartilage? Give an example of each
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hyaline (ribs, nose, trachea)
fibrocartilage (intervertebral, meniscus of the knee) elastic (epiglottis, external ear) |
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What is a plexus?
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a network of nerves
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What are the two types of bone?
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spongy, compact
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Name the liquid connective tissues
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blood, lymph
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What are the differences between connective and epithelial cells?
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epithelial tightly packed
epithelial don't connect stuff together epithelial has small amount of ECM epithelial are organised into layers epithelial are avascular |
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What are the three types of muscle tissues? Give an example of each
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skeletal, biceps femoris
cardiac, heart smooth, intestines, iris, urinary bladder |
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Which muscle types are striated?
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Skeletal and cardiac
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Which muscle types are mononucleated?
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Cardiac and smooth
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What attaches cardiac muscles to each other?
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intercalcated discs
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What word describes the shape of smooth muscle cells?
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spindle
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What are the four properties of muscle tissue?
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extensibility
excitablility elasticity contractility |
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What two cell types are classified as nervous tissue?
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nerves
glia |
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Receptors are sensitive to which stimuli?
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heat/cold, light/dark, pressure
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Name the parts of a neuron
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soma, dendrites, axon, synaptic branches, synaptic bulbs,
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Name the neuron types
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afferent, efferent, interneurons
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Name the types of neuroglia
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astrocytes
oligodendrocytes microglia ependymal cells |
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What are the two types of glands?
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endocrine and exocrine
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Give an example of exocrine cells
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goblet cells
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Where do endocrine glands secrete their product[s]?
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directly into interstitial fluid which diffuses into the bloodstream
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Which organs have both types of glands?
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pancreas, ovaries, testes
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Name the major endocrine glands
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pineal, pituitary, thyroid, thymus, adrenal, pancreas, ovary, testis
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Name the major exocrine glands
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mammary, liver, bile duct, pancreatic duct
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What do endocrine glands secrete? Exocrine glands?
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hormones
digestive juices, other products |
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What are the four types of membranes?
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Mucosa, serous, cutaneous and synovial
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What are the functions of mucosa?
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pathogen trap
gas exchange nutrient absorption |
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Mucosa lines a cavity that opens _____________________.
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directly to the exterior
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Where are mucous membranes found?
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nostrils, mouth, lips, eyelids, ears, genital area, anus
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What are the function of the epithelial layer of mucosa?
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barrier (esp. microbes)
no leaking (tight junctions) mucous (goblet cells) digestion (enzymes) |
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What is the purpose of areolar connective tissue (lamina propria) in a mucous membrane?
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supports and binds epithelium, protection, vascular source
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Serosa lines a cavity _________________________.
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that does not open to the exterior
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Name organs protected by serosa
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lungs, heart, stomach, intestines
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What does a serous membrane consist of?
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areolar connective tissue
mesothelium |
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what does mesothelium secrete?
|
serous fluid
|
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What are the layers of a serous membrane?
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parietal - lines cavity
visceral - lines organ |
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Which membrane type lacks an epithelial layer?
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synovial
|
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What does a synovial membrane consist of?
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synoviocytes, which secrete some of the components of synovial fluid
|
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Superficial skin is called?
Deeper skin is called? |
epidermis
dermis |
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What type of membrane is skin?
|
cutaneous
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