Term
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Definition
1.endocrine and neural target; hormone-producer
2. Produces ANF |
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Term
| Atrial Natriuretic Factor (ANF) |
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Definition
| a.secreted by granular heart cells b. regulates blood pressure and volume c. regulates H2O, Na+, K+ excretion (acts on kidneys, adrenal glands) d. neuropeptide (in the brain): regulates NaCl & H2O intake, heart rate, VP secretion |
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Term
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Definition
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Term
| Central Nervous System (CNS) |
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Definition
| brain and spinal cord nerve cells / neural paths |
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Term
| Peripheral Nervous System (PNS) |
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Definition
peripheral sensory and motor nerves that
extend throughout the entire body
- split into somatic & autonomic |
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Term
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Definition
1. conscious, voluntary control
2. receives afferent input, gives efferent motor output to
skeletal muscles (via 12 pairs of cranial nerves, 31 pairs of
spinal nerves); conscious / voluntary |
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Term
| Nervous System- Autonomic |
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Definition
1. unconscious, involuntary
2. Split into Sympathetic, Parasympathetic, & Enteric
3. sensory input from viscera, sends motor nerve
signals to visceral (smooth) muscle, glandular tissues, and to
peripheral endocrine glands (heart, arteries, GI systems;
thymus, adrenals, thyroid, gonads) |
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Term
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Definition
1. Part of autonomic
2. emergency, costs energy, fight for survival responses,
usually speeds-up processes
3. 2 chains on either side of the spinal cord |
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Term
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Definition
0. Part of Autonomic
1. Efferent – connections transmit commands to internal organs, blood
vessels, endocrine system
2. Afferent – signal to the CNS that internal state; some become
conscious (ie, hunger, distension)
3. from specific cranial nerves and an additional
region from the sacral portion of the spinal cord |
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Term
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Definition
innervates GI tract, pancreas, gall bladder via superior and
inferior mesenteric ganglia |
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Term
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Definition
hypothalamo-hypophyseal system
Stimuli -> info. coded/transmitted to CNS -> integration/analysis -> response directed to hypothalamus neurosecretory cells -> hormone secretion by neurosecretory cells |
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