Module 2 Practice Test (A&P)

Gaps or interruptions in the myelin sheath are called A. internodes. B. tight junctions. C. neurofilaments. D. nodes of Ranvier. E. gap junctions.

D

Synaptic vesicles contain neurotransmitters and are present in the A. dendrites. B. cell body. C. axolemma. D. presynaptic terminals (terminal boutons). E. trigger zone.

D

A neuron may have A. one axon and many dendrites. B. one dendrite and many axons. C. no dendrites. D. no axons. E. more than one cell body.

A

Synaptic knobs are at the ends of A. axons. B. dendrites. C. cell bodies. D. neuroglia. E. mitochondria.

A

The two types of cells of the nervous system are A. axons and dendrites. B. neurons and neuroglia. C. motor neurons and sensory neurons. D. Schwann cells and microglia. E. neurons and muscle cells.

B

Three general functions of the nervous system are A. sensory, motor, and predictive. B. integrative, motor, and sensory. C. predictive, manipulative, and integrative. D. reflexive, sensory, and predictive. E. seeing, feeling, and touching.

B

White matter is composed of A. ganglial sheaths. B. bundles of myelinated axons. C. collections of nerve cell bodies. D. bundles containing both myelinated axons and nerve cell bodies. E. collections of unmyelinated axons.

B

The peripheral nervous system includes the A. brain. B. spinal cord. C. cranial nerves. D. blood-brain barrier. E. cerebellum.

C

The nervous system A. detects changes in the internal or external environment. B. controls the movement of muscles. C. regulates secretion. D. integrates information from several sources and uses it to respond appropriately. E. all of the above

E