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166 Cards in this Set
- Front
- Back
Receptive fields |
Area which stimulation leads to response |
|
Retinal ganglion cells |
Cells have receptive fields with a center and antagonistic surrounds (output, firing action potentials) |
|
Geniculostriate system |
Major visual projection for mammals
|
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Cribiform plate |
Separate nose and brain |
|
Olfactory is in |
The cranial nerve |
|
Collection of neurons at an integration site |
Centralization |
|
Collection of nervous structure and function at the head |
Cephalization |
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Central nervous system consists of |
The brain and spinal cord |
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Peripheral nervous system is |
The sensory and motor neurons that connect the CNS to the body |
|
White matter |
Myelin, tracks, myelinated axons |
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Grey matter |
Cell bodies |
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What are the brain planes |
Coronal (bread slicing), Sagittal (cut long), Cross sectional (up or down) |
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Organization of brain (general) |
Cortex (outer brain), medulla (inner layer) |
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Fore brain |
Telencephalon and diencephalon |
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Mid brain |
Mesencephalon |
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Hindbrain |
Metancephalon and myelencephalon |
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Increase folds without increasing size |
Cerebral cortex |
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Cerebral cortex includes |
Localization of function, size matters (more neurons more folds), maps (homunculus-sensory and motor input), expanded forebrain, plasticity of neural cells |
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Peripheral nervous system is the |
Somatic and autonomic |
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Somatic |
Striated skeletal muscle and sensory receptors |
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Autonomic |
Cardiac, smooth muscle. 1- sympathetic 2- parasympathetic 3- enteric (inside gut) |
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Sympathetic is |
Fight or flight |
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Parasympathetic is |
Rest and digest |
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Somatic and autonomic, how many neurons? |
Somatic- single neuron relay Autonomic- two neuron relay |
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Preganglionic neuron |
Neuron that exits the spinal cord |
|
Autonomic ganglia are |
Synapses between the first and second neurons |
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Post ganglionic neurons are |
The neurons from the ganglia to the effectors |
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Sympathetic ganglia are |
By spinal cord, exit from lumbar regions (short to long) |
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Parasympathetic ganglia are |
Near targets. Exit spinal cord from cranial and sacral regions (long to short) |
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Horomones for sympathetic and parasympathetic |
Sympathetic- epinephrine Parasympathetic- acetylcholine |
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Period of time is |
Between a particular rhythm and the next |
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Zeitgiber (time giver) is |
Environmental cue. "Free running rhythm" when cue is removed |
|
Suprachiasmatic nuclei |
Internal clock (circadian clock), indogenous rhythm |
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What are slow and broadcast |
Endocrine and neuroendocrine cells |
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Non neuronal endocrine cells |
Epithelial cell derived |
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Neurosecretory endocrine cells are |
Modified neurons |
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Steroid horomones are |
Derived from cholesterol, lipid soluble |
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Peptide and protein horomones are |
Structured chains of amino acids |
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Amine horomones are |
Modified amino acids, water soluble |
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Intracellular receptors bind |
Lipid soluble receptorts |
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G-protein coupled receptors bind |
Water soluble horomones |
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Enzyme linked membrane receptors bind |
Water soluble horomones |
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POMC |
Peptide/protein hormone made as part of a pre hormone. Carry out post-translational processing to generate the hormone |
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What are the endocrine glands |
Pituitary, adrenal, thyroid, pan tease, gonads |
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Posterior pituitary gland |
Down growth of hypothalamus, neural control of neurosecretory cells |
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Anterior pituitary |
Derived from the palate, neurosecretory control of endocrine cells |
|
Posterior pituitary parts |
Median eminence, infundibular stalk, pars nervoua |
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Anterior pituitary parts |
Pars tuberalis, pars distalis, pars intermedia |
|
The hormones of the hypothalamus |
Inhibit or release, tropic hormones control other endocrine glands |
|
Semelparous reproduction |
One time then death |
|
Iteroparous reproductikn |
Many reproductive events |
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Monotreme mammals |
Lay eggs |
|
Marsupial mammals |
Immature young in pouch |
|
Eutherian mammals |
Placental mammals |
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Eutherian menstruate |
Shed uterine lining |
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Eutherian estrus |
Re absorb uterine lining |
|
Ovary phases |
1) follicular phase- early/late, oocyte primary to mature 2) luteal phase- degenerate/ mature corpus luteum 3) LHS- key to oogenesis 4) corpus luteum- supports pregnancy |
|
LH |
Luteinizing hormone, estrodial drives surge. |
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FSH |
Follicle- stimulating hormone |
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The adrenal cortex parts |
Zona reticularis- sex hormone Zona fasciculata- glucocorticoids Zona glomerulosa- amine hormones |
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Follicular phase |
Menses and proliferative |
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Luteal phase |
Secretory, progesterone |
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What do leydig cells make |
Testosterone |
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What do steroli cells do (FSH) |
Support and regulate spermatogenesis |
|
What are the spinal reflexes |
Stretch and flexing |
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Stretch reflex |
1a sensory neuron Extrafusial (working) muscle Intrafusial (nonworking) muscle Muscle spindles (proprioceptors) |
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1a sensory neuron |
Largest sensory neuron, sends information (extensor muscles). Alpha motor neuron on many muscles. |
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Flexion reflex |
Withdraw reflex, load compensation, descending pathways from brain (input) from 1a afferents and flexion-reflex afferents |
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Peripheral control rhythmic movements |
Each movement activates receptors that trigger the next movements |
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Central control rhythmic movement |
Neural circuit in CNS that generates sequential and patterned activation of Motor neurons |
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Hormonal axis is |
Secretions of one endocrine gland acting on another in sequence |
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The cerebral cortex |
Primary motor cortex and premotor cortex, cerebellum, basal ganglia |
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Primary motor cortex |
Movement and muscle coordination |
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Premotor cortex |
Appropriate movement |
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The cerebellum |
Detection of motor error (smooth movement) |
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Basal ganglia |
Suppress unwanted movement |
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The m-line and z-disc |
Anchor myosin and actin |
|
Z is for, and m is for |
Z (actin) M (myosin) |
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Titan and nebulin align contractile proteins. |
Titan: z-disc to m-line Nebulin- z-disc to end of actin |
|
Muslim heads have |
ATP released with Ca2+ |
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Synergism |
One hormone amplifies the affects of the other |
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Permissiveness |
One hormone must be present for the other to excert its effects |
|
Anyagonism |
One hormone opposes the action of the other |
|
Gonadotropins |
LH and FSH (from pituitary) |
|
Diabetes type 1 |
Autoimmune disease |
|
Diabetes type 2 |
Insulin resistance |
|
Gestational diabetes |
Predictor of type 2 |
|
The hormones of the hypothalamus |
Inhibit or release, tropic hormones control other endocrine glands |
|
Semelparous reproduction |
One time then death |
|
Iteroparous reproductikn |
Many reproductive events |
|
Monotreme mammals |
Lay eggs |
|
Marsupial mammals |
Immature young in pouch |
|
Antagonism |
One hormone opposes the action of the other |
|
Eutherian menstruate |
Shed uterine lining |
|
Eutherian estrus |
Re absorb uterine lining |
|
Ovary phases |
1) follicular phase- early/late, oocyte primary to mature 2) luteal phase- degenerate/ mature corpus luteum 3) LHS- key to oogenesis 4) corpus luteum- supports pregnancy |
|
LH |
Luteinizing hormone, estrodial drives surge. |
|
FSH |
Follicle- stimulating hormone |
|
The adrenal cortex parts |
Zona reticularis- sex hormone Zona fasciculata- glucocorticoids Zona glomerulosa- amine hormones |
|
Follicular phase |
Menses and proliferative |
|
Luteal phase |
Secretory, progesterone |
|
What do leydig cells make |
Testosterone |
|
What do steroli cells do (FSH) |
Support and regulate spermatogenesis |
|
What are the spinal reflexes |
Stretch and flexing |
|
Stretch reflex |
1a sensory neuron Extrafusial (working) muscle Intrafusial (nonworking) muscle Muscle spindles (proprioceptors) |
|
1a sensory neuron |
Largest sensory neuron, sends information (extensor muscles). Alpha motor neuron on many muscles. |
|
Flexion reflex |
Withdraw reflex, load compensation, descending pathways from brain (input) from 1a afferents and flexion-reflex afferents |
|
Peripheral control rhythmic movements |
Each movement activates receptors that trigger the next movements |
|
Central control rhythmic movement |
Neural circuit in CNS that generates sequential and patterned activation of Motor neurons |
|
What do leydig cells make (LH) |
Testosterone |
|
The cerebral cortex |
Primary motor cortex and premotor cortex, cerebellum, basal ganglia |
|
Primary motor cortex |
Movement and muscle coordination |
|
Premotor cortex |
Appropriate movement |
|
The cerebellum |
Detection of motor error (smooth movement) |
|
Basal ganglia |
Suppress unwanted movement |
|
The m-line and z-disc |
Anchor myosin and actin |
|
Z is for, and m is for |
Z (actin) M (myosin) |
|
Titan and nebulin align contractile proteins. |
Titan: z-disc to m-line Nebulin- z-disc to end of actin |
|
Muslim heads have |
ATP released with Ca2+ |
|
Tropomyosin follows binding sites and blocks them |
Troponin has bindings sites for Ca2+ and shifts tropomyosin |
|
Synergism |
One hormone amplifies the affects of the other |
|
Vertebrate skeletal muscle |
Structure |
|
Isometric contraction |
Tension |
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Isotonic contraction |
Changes in length |
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What is tension |
The force exerted on a load by a unit of cross sectional area of the muscle |
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Myosin heads have |
ATP released with Ca2+ |
|
What is a motor unit |
Number of muscle fibers an alpha motor neuron innervates |
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Vertebrate skeletal muscle |
Structure |
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Gas exchange fusion and bulk flow |
Fusion- skin/lungs Bulk flow- into system |
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Pv=nRT |
Ideal gas law (partial pressure in chamber) |
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Cx=APx |
Henry's law (gas partial pressure in aqueous solution) |
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Permissiveness |
One hormone must be present for the other to excert its effects |
|
What phase does gas dissolve quickest in |
Aqueous |
|
What is resting tidal volume |
~500 ml (12% new air) |
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What is ventilation powered by |
The diaphragm and intercostals |
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What is the diaphram |
Sheet of connective tissue that completely separated thorasic from abdominal cavities |
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The expansion of the thorasic cavity is called |
Contraction |
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What are intercostals |
Muscles that run b/w adjacent rins and abdominal muscles |
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What is the fountainhead of breathing |
Medulla oblongata |
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What are direct effects of excersize |
Coordination of breathing and limb movements |
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What are pulmonary surfactats |
Phospholipids that prevent water molecules from attracting each ither |
|
Blood CO2 |
Dissolved- 7% Bound to hemoglobin- 23% As bicarbonate- 70% |
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Anyagonism |
One hormone opposes the action of the other |
|
Hemoglobin unloading |
At rest- 25% Excersizing- 65% |
|
What does the affinity for hemoglobin for O2 depend om |
The partial pressure of CO2 and pH |
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What is the Bohr effect |
As P(CO2) increases, pH decreases |
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The Bohr effect is adaptive because |
It facilitates deoxygenate in of Hb at the tissues |
|
Why are the atria of the heart very small |
B/c of velocity needed to pump blood |
|
Muscle of the heart is |
Striated, uninucleated, myofibers organized into sarcomeres. Branched. |
|
Intercalated discs b/w adjacent discs inclide |
Gap junctions (electrical coupling) and desmosomes (mechanical strength) |
|
Fibrous tissues in the heart |
Breaks up gap junctions and must go through the Atrioventrical node to ventricles |
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Why does the Atrioventrical node have a delayed response |
To avoid aorta and ventricles beating together |
|
Anastomosis |
Bypass capillaries |
|
Gonadotropins |
LH and FSH (from pituitary) |
|
Kidney functions |
Water balance, regulate solutes, excrete waste |
|
Steps for urine production |
1) ultra filtration 2) secretion 3) reabsorption |
|
What is Glomerulus |
Capillary network in capsule |
|
Glomerulus in aquatic and terrestrial species |
Aquatic- more sunken into kidney Terrestrial- more concentrated urine, less sunken |
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Gas exchange currents from best to least |
Countercurrent, cross current, cocurrent, tidal |
|
Concentrated urine |
Goes down a gradient |
|
Loop of Henley |
Back (Definition) |
|
Diabetes type 1 |
Autoimmune disease |
|
Diabetes type 2 |
Insulin resistance |
|
Loop of Henley |
Back (Definition) |
|
Muscle contraction pathway |
Rigor > atp to adp p(i) > bind to g-cell > powerstroke goes to M line > bind site breaks |
|
Sliding filament theory |
Myosin and actin "sliding" past one another |