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44 Cards in this Set
- Front
- Back
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What are the tubular units within compact bones?
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Osteon
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What is the cartilage at the end of a long bone?
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Hyaline
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Where is the Diaphysis and what is it made of?
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Shaft of bone made of compact bone and filled with yellow marrow.
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Where is the Epiphysis and what is it made of?
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Ends of bone made mostly of spongy bone.
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What tissue is the covering of a long bone?
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Periosteum
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What is the process called that allows the bone to respond to stress?
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Re-modeling
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What is the fetal skeleton made of?
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Cartilage
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What two hormones regulate calcium in the blood?
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Parathyroid (PTH)
Calcitonin |
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What the steps to a bone break/mend?
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1)Hematoma
2)Fibrocartilaginous callus 3)Bony callus 4)Re-modeling/healed fracture |
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What is a synovial joint?
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A joint that is freely moveable
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What is the most moveable joint?
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Ball & Socket
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What is the Axial Skeleton?
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Trunk, Neck and Skull.
Excludes legs, pelvis arms and shoulders. |
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What is the thick, end of muscle tissue?
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Tendon
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What muscle do you use to extend arm?
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Tri-cept
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What muscle do yo use to flex arm?
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Bi-cept
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How are skeletal muscles named?
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Size
Shape Location Direction of muscle fiber Attachment Number of Attachments Action |
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How do myosin and actin?
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Toponin binds with Calcium makes actin(loop) available for myosin(hook) myosin attaches in process called cross bridging(crawling velcro) uses ATP.
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What nuerotransmitter triggers muscle movement?
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Acytlcholine ACh
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What is released from the sarcoplasmic reticulum?
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Calcium
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What are the three stages of muscle force?
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Summation
Tetanus fatigue |
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What is a motor unit?
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A nerve fiber and all of the muscle fibers it stimulates.
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What cells transmit signals within the nervous system?
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Nuerons
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What is a myelin sheath?
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fatty/lipid based wrap around axon. Make signals move faster. (insulation)
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What is the charge of a nueron during rest/active?
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Resting=-65mV more sodium outside
Active=+40mV sodium moves inside |
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What is the gap between the sending axon and recieving neuron?
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Synaptic Cleft
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What protects the brain and spinal column?
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Meningis
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What areas of the brain have been mapped in detail?
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Primary motor area
Primary somatosensory area (cerebrum) |
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What area of the brain helps maintain homeostasis?
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Hypothalumus
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What does the Cerebellum do?
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Recieves sensory info and distributes it to the rest of the brain
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What is it called when the axion is not conducting a nerve impulse?
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Resting potential.
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What are the memory types?
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Long Term (episodic and semantic)
Short Term Skill |
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What disease involves beta amyloid plaque?
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Ahzheimers
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What is the peripheral nervous system?
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2 system types:
Somatic=skin and muscles Autonomic=cardiac and smooth muscle |
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What are the two parts of the autonomic nervous system?(peripheral nervous system)
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Sympathetic=fight or flight(speed up)
Parasympathetic=rest and digest (slow down) |
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What sensory receptor recieve info stimuli from inside the body? Outside?
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inside=interoceptors
outside=exteroceptors |
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What are the pain receptors called?
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Chemoreceptors
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When a receptor loses it sensitivity to a certain stimuli due to over exposure is called what?
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Sensory adaptation
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What is the name of the cells in the roof of the nasal cavaty that help us smell?
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Olfactory cells
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What is the roll of the Choroid in the eye?
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second layer
Absorbs stray light Cilliary holds lense in place Iris regulates light entrance |
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What gelatinous fluid makes up the posterior of the eye?
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vitreous humor
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Where are the cones in the eye mostly located what is there function?
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Fovia Centralis
See color/ fine vision |
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What is rhodopsin?
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complex molecule made up of retinal and opsin involved in ligh absorbsion
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Parts of ear?
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Auditory Canal-outer wave
Typanic Membrane(drum)-middle malleues-middle kinetic incus-middle kinetic stapes(stirrup)-middle kinetic Semicircular canal-inner vestibule-inner vestibular nerve-inner cochlea-inner cochlear nerve-inner |
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Where are the receptor for equalimbrium located?
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inner ear
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