Term
| What are multipolar neurons? |
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Definition
| motor (efferent) nerves that convey neural impluses from the CNS to distant effector organs (muscles, glands) |
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Term
| What are pseudouniplar neurons? |
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Definition
| sensory (afferent) nerves that convey neural impulses from sensory receptors (in skin, muscles, eyes, ears, and organs) to the CNS |
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Term
| structural divisions of nervous system |
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Definition
| central and peripheral nervous systems |
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Term
| functional divisions of nervous sytem |
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Definition
| somatic (voluntary) and autonomic (involuntary) nervous systems |
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Term
| describe gray matter in spinal cord |
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Definition
| H shaped, has high density of nerve cell bodies |
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Term
| How are the H regions of gray matter in the spinal cord subdivided? |
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Definition
| dorsal horns and ventral horns |
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Term
| what is the white matter in the spinal cord? |
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Definition
| bundles of nerve axons (tracts) |
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Term
| what does the PNS consist of? |
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Definition
| ALL neural tissues outside of the CNS |
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Term
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Definition
| collection of nerve cell bodies in the PNS |
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Term
| what are peripheral nerves? |
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Definition
| bundle of nerve axons in the PNS |
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Term
| how are peripheral nerves classified? |
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Definition
| as spinal nerves or cranial nerves |
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Term
| how many pairs of spinal nerves are there and how are they divided? |
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Definition
| 31: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, 1 coccygeal |
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Term
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Definition
| little things that come out of spinal cord and converge to form roots |
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Term
| spinal roots converge to form what? |
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Definition
|
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Term
| spinal nerve divides to form what? |
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Definition
|
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Term
| are spinal nerves peripheral or central nerves? |
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Definition
|
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Term
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Definition
| convey nerve fibers to and from the intrinsic back muscles, the skin of the back, and the facet joints of the vertebral column |
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Term
|
Definition
| convey nerve fibers to and from the anterior and lateral regions of the trunk/torso, the arms and legs |
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Term
| peripheral nerves of the somatic nervous system carry which types of nerves? |
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Definition
| somatic motor (GSE) and general sensory (GSA) |
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Term
| what is the acronym for somatic motor nerves? |
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Definition
|
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Term
| what type of neurons are somatic motor nerves? |
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Definition
|
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Term
| what do somatic motor nerves (GSE) do? |
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Definition
| convey impulses from the CNS to skeletal (voluntary) muscles |
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Term
| what is the acronym for somatic motor nerves? |
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Definition
|
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Term
| what do general sensory nerves do? |
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Definition
| convey sensations from the body to the CNS |
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Term
| what sensations do general sensory nerves convey? |
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Definition
| pain, temperature, touch, proprioception |
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Term
| what type of neurons are general sensory nerves? |
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Definition
|
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Term
| where do cell bodies of somatic motor nerves (GSE) reside? |
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Definition
|
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Term
| how do the axons of somatic motor nerves (GSE) exit the spinal cord? |
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Definition
| via the ventral root to innervate skeletal muscle |
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Term
| where do the axons of the general sensory nerves (GSAs) reside? |
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Definition
| dorsal horn of the spinal cord |
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Term
| how do the axons of the general sensory nerves (GSA) project into the dorsal horn? |
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Definition
|
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Term
| where do the cell bodies of the general sensory nerves reside? |
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Definition
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Term
| somatic nervous system does NOT provide sensory and motor innervation to which body parts? |
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Definition
| viscera in the body cavities, smooth and cardiac muscle, glands |
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