Term
| what is the overall function of the meninges? |
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Definition
| protection of the central nervous system |
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Term
| what are the meninges comprised of? |
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Definition
dura mater
arachnoid
pia meter |
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Term
| what do the meninges enclose? |
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Definition
| the brain and the spinal cord |
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Term
| list the layers of the meninges from superficial to deep |
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Definition
| dura mater, arachnoid mater and pia mater |
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Term
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Definition
a type of nervous tissue with little myelin
it comtains the somas, dendrites and priximal parts of the axons of neurons
it is the site of synaptic contact between neurons and therfore the site of all synaptic integration(information processing) in the CNS |
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Term
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Definition
nervous tissue that makes up the spinal cord; contains abudance of myelinated axons,w hich give it a bright, pearly white appearance
communication between levels of CNS |
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Term
| what are the bundles of axons that the white matter of the spinal cord is composed of? |
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Definition
| tracts: they carry signals from one part of the central nervous system to another |
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Term
| describe the appearance of gray matter in a spinal cord cross section |
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Definition
H shaped in cross sections
butterfly shaped |
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Term
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Definition
| sense organs that monitor the position and movements of body parts |
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Term
| explain the path of a reflex arch |
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Definition
somatic receptors in the skin-a muscle or a tendon
afferent nerve fibers:which carry information from these receptors into the dorsal horn of the spinal cord
interneurons-which integrate information; these are lacking from some reflex arcs
efferent nerve fibers-which carry motor impoulses to the skeletal muscles
skeletal muscles: somatic effectors that carry out the response |
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Term
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Definition
| masses of cerebral gray matter buried deep in the white matter-lateral to the thalamus |
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Term
| what does the cerebellum do? |
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Definition
| it is responsible for equilibrium, motor coordination, and memory of learned motor skills |
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Term
| what is the arrangement of the cerebral cortex? |
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Definition
| has four lobes: frontal, parietal, temporal, and occipital(all gray matter) |
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