Functional Organization of Nervous Tissue

Interneurons (associated)

These cells conduct action potentials from one neuron to another within the CNS

C. Located in eye and nasal cavity

These statements about unipolar neurons are all true except? A. Most are sensory B. Have a sinhgle process extending from cell body C. Located in eye and nasal cavity D. Have no dendrites

Plexus

This extensive network of axons is locared outside of the PNS

Somatic

This portion of the motor division of the nervous system conducts action potentials from thr CNS to skeletal muscle fibers

E. All are true

This statement best describes the myelin sheath A. Made of schwann Cells B. Covering surrounding an axon C. Provides insulation from other axons D. Helps conduct electrical potential more rapidly E. All are true

Ependymal cells

ThisThese cells types produce and help circulate cerebral spinal fluid

C. Spinal cord

Which is not a part of the peripheral nervous system? A. Cranial nerves B. Ganglion C. Spinal cord D. Spinal nerve

12-31

______ pairs of cranial nerves originate from the brain, and _____ pairs of spinal nerves originate from the spinal cord

Presynaptic terminals

Axons terminate by branching to form small extensions with enlarged ends which are called this

True

The cell bodies of sensory neurons are located in the dorsal root ganglion near the spinal cord? True or False