Term
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Definition
acts as a cholingeric receptor:
used in:
- pre-ganglionic neurons in both systems
- post-ganglionic in parasymapthetic
-somatic nervous system |
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Term
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Definition
fxns in the processing of info; site of emotion, memory, and learning
includes:
-brain
-spinal cord |
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Term
| peripheral nervous system |
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Definition
fxns in the transmission of impulses to and from CNS and peripheral tissues; an input and output system
includes: the
- somatic NS
--autonomic NS |
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Term
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Definition
regulates the voluntary activities carried out by the skeletal muscles
2 types of pathways:
- sensory
- motor |
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Term
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Definition
regulates involunt. activities, carried out by organs
doesnt req sensory input to cause fxn
2 systems include:
1. sympathetic
2. parasympathetic |
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Term
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Definition
| carry motor impulses to effector organs |
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Term
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Definition
| - carry sensory impulses to CNS |
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Term
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Definition
thoracolumbar division--
generally maintains the homeostasisof autonomic body fxns, mediating "flight or fight"rxn under stress |
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Term
| parasympathetic nervous system |
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Definition
craniosacral division--
in charge of "feed and breed" types of activities |
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Term
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Definition
many types have been ID
the axn is determined by the type of receptor it binds to (may be either excitatory or inhibitory) |
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Term
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Definition
EX: CNA- gilial cells; PNS- Schwann and satellite cells
Fnx-
1)provide protection, 2) supply metabolic support in neurons, 3) form the myelin sheath |
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Term
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Definition
| segments that increase speed of nerve conduction |
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Term
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Definition
| gaps between myelin sheath |
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Term
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Definition
| impulses jump from node to node through the extracellular, instead of being conducted along entire length of axon which increases velocity |
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Term
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Definition
| motor cortex; Broca's area (motor aspect of speech);and complex thought |
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Term
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Definition
| auditory and vestibular centers; addtnal part of language center; Wernicke's area |
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Term
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Definition
| expressive: understanding but not being able to express |
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Term
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Definition
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Term
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Definition
understanding speech;
associated with receptive asphagia |
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Term
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Definition
| difficulty understanding language |
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Term
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Definition
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Term
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Definition
| contains somasensory area |
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Term
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Definition
| intergrates signals traveling b/w cortex and brain stem and contains part of RAS |
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Term
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Definition
| mediates arousal and wakefullness |
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Term
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Definition
| secretes hormones and regulates pituatary and ANS |
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Term
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Definition
| coordinates/ smooths movement; posture and balance |
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Term
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Definition
(midbrain, pons, mendulla)
works with sensory and motor skills r/t contra-lateral; regulates ANS, part of RAS |
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Term
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Definition
| crebral cortex; diencephalon; cerebellum; brainstem |
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Term
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Definition
| skeleton; meninges; cerebrospinal fluid; blood- brain barrier |
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Term
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Definition
| produced by the ventricles; circulates around the brain and the spinal cord; reabsorbed in vascular system; provides protection; helps support the mass; homeostatic enviornment; nutritive fxn |
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Term
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Definition
| intercarnial pressure; affects the tissue volume; blood volume; CSF; Monro- Kellie hypothesis |
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Term
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Definition
| a small increase in one component can be compensated for by a decrease in one or both |
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Term
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Definition
| displacement of the brain tissue==> squeezing into places it doesnt belong |
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Term
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Definition
| involved in the maintanence of the posture;muscle tone, protective response to pain |
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Term
| preganglionic r/t sympathetic |
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Definition
| neurons that emerge from the spinal cord |
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Term
| post-gonglionic r/t sympathetic |
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Definition
| neurons traveling to the target cell |
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Term
| pre-ganglionic r/t parasymapthetic |
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Definition
| very long neurons travel all the way to the target organs |
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Term
| post-ganglionic r/t parasymapthetic |
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Definition
| neurons located very near or within target organs |
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Term
| norepinephrine and epinephrine |
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Definition
act as andregenic receptors in SNS only
-secreted in symapthetic postganglionic neurons |
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Term
| Types of cholingeric receptors |
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Definition
nicotnic- (present in automotic ganglia of both systems, and end plates of skeletal muscle *SNS*
- present in target cell PNS postganglionic fibers |
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Term
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Definition
| located on all organs regulated by SNS |
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Term
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Definition
| primarily in the heart (increase HR) |
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Term
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Definition
| in bronchioles (affects the lungs) |
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Term
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Definition
| - vascular smooth muscle (sympathetic stimulation) |
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Term
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Definition
| CNS- can inhibit release of norepinephrine from sympathetic nerve terminals, thought to be involved in regulation of BP |
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Term
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Definition
| pain perceived at a different site from its point of origin, but that is innervated by the same spinal segment |
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Term
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Definition
| stimulate the CNS and PNS opioid receptors inhibit the release of chemical mediators of pain |
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Term
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Definition
| intensity of the stimuli is percieved as painful |
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Term
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Definition
| the max intensity or duration of pain that a person is willing to endure; note that envionmental factors do affect the subject |
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