274 EXERCISE TWELVE Nervous Tissue
14. The part of a neuron that conducts nerve impulses toward the cell body is the
15. Neurons that carry nerve impulses between sensory neurons and motor neurons are calle
neurons.
16. Neurons with one dendrite and one axon are classified as
17. Unmyelinated gaps between segments of the myelin sheath are known as
18. The neuroglial cell that produces a myelin sheath around axons of neurons of the central
system is called a(n)
19. In the reflex arc, the muscle or gland that responds to a motor impulse is called the
20. The functional contact between two neurons or between a neuron and an effector is called
21. The circuit that probably plays a role in breathing, waking up, sleeping, and short-term me
a(n)
circuit.
