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Spinal Nerves
Anatomy & Physiology Test 3
Question | Answer |
---|---|
Cervical Enlargement | Thicker section of spinal cord due to nerves from the upper limb |
White Matter | Contains myelinated axons |
Lumbar Enlargement | Thicker section of spinal cord due to nerves from the lower limb |
Dorsal Root Ganglia | Cell bodies of sensory neurons located outside central nervous system |
Endoneurium | Connective tissue surrounding axons |
Epidural Space | Space between the dura mater and spinal cord |
Ventral root | Motor nerve fibers exit the spinal cord along this root |
Perineurium | Connective tissue around fascicle |
Terminus Filum | Anchors spinal column so it can't move up and down in vertebral column |
Medullary Cone (conus medullaris) | Tapered end of spinal cord |
Dura mater | Loose fitting outermost meningeal layer |
Gray mater | Contains very little myelin. Mostly contains somas, dendrites, and nonmyelinated axons |
Cauda Equine | Bundles of spinal nerves (L2-S5) that extend past end of spinal cord |
Anterior Gray Horn | Contains large somas of motor neurons |
Denticulate Ligaments | Prevents side to side movements of spinal cord in vertebral column |
Subarachnoid Space | Cerebrospinal fluid is found in this space |
Dorsal Root | Carries sensory nerve fibers to spinal cord in vertebral column |
Columns | Bundles of axons running up and down the spinal cord |