Term
Name the functional anatomical parts of a neuron |
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Definition
Dendrites -precesses that receive stimuli Cell body Axon- sends impuleses Synapse- junction of neuron axan with another neuron's dendrites |
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Term
| When nerve cells and fibers are outside the brain or spinal cord what are they called? |
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Definition
cells- Ganglion fibers- nerves, nerve roots, trunks, cords, or rami. |
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Term
| When nerve cells and fibers are inside the brain or spinal cord, what are they called? |
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Definition
cells- nucleus fibers- tract |
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Term
| What are the three primary components of the nervous system? |
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Definition
Peripheral Nervous System (PNS) Central Nervous System (CNS) Autonomic Nervous System (ANS) |
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Term
| How are the 31 spinal nerves split up? |
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Definition
8 cervical 12 thoracic 5 lumbar 5 sacral 1 coccygeal spinal nerve |
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Term
| In the spinal cord, what is contained in the dark matter and the white matter? |
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Definition
Dark (Gray) Matter: Various cell bodies White Matter: Fiber tracts (ascending and descending) |
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Term
| Where are the primary cell bodies for the GVEs? |
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Definition
In the intermediolateral horn -Autonomic |
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Term
| Where are the primary cell bodies for the GSAs and GVAs? |
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Definition
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Term
| Where are the primary cell bodies for the GSE? |
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Definition
The ventral horn of the gray matter -This is why they appear larger than the dorsal horn. |
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Term
| Describe the somatotropic organization of the gray matter of the spinal cord. |
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Definition
Flexors are more dorsal, extensors are more ventral Medial muscles (trunk) are located more medially Lateral muscles (hands) are located more laterally |
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Term
| Where do spinal cord tracts travel in the spinal cord? What are the three basic tracts? |
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Definition
In the white matter 1. Spinothalamic (pain/heat) 2. Dorsal Column (proprioception/tactile) 3. Corticospinal |
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