A&P: Chap. 8

10) The branching structures that, together with the cell body, are sensitive to chemical, mechanical, or electrical stimulation are called

A) axons. B) Nissl bodies. C) synapses. D) dendrites. E) neurofibrils. Answer: D

Most neurons in the brain are

A) bipolar. B) unipolar. C) anaxonic. D) multipolar. E) tripolar. Answer: D

The ________ nervous system provides involuntary regulation of smooth muscle, cardiac muscle, and glandular activity.

A) central B) autonomic C) somatic D) collateral E) ganglionic Answer: B

In general, the nervous system

A) controls only conscious activities. B) is fast acting. C) is long lasting. D) responds to changes in the external environment only. E) is one of the simplest organ systems. Answer: B

The part of the peripheral nervous system that brings information to the central nervous system is the

A) motor division. B) afferent division. C) efferent division. D) autonomic division. E) somatic division. Answer: B

All of the nervous tissue outside of the central nervous system comprises the ________ nervous system.

A) somatic B) autonomic C) sympathetic D) central E) peripheral Answer: E

Which of the following is a function of the efferent division of the nervous system?

A) providing sensation of the internal and external environments B) integrating sensory information C) coordinating voluntary and involuntary activities D) sending signals to muscles E) regulating or controlling peripheral structures and systems Answer: D

The ________ division of the nervous system brings sensory information to the central nervous system.

A) afferent B) descending C) efferent D) motor E) spinal Answer: A

The glial cells responsible for maintaining the blood-brain barrier are the

A) astrocytes. B) Schwann cells. C) microglia. D) ependymal cells. E) satellite cells. Answer: A

The brain and spinal cord comprise the

A) autonomic nervous system. B) peripheral nervous system. C) central nervous system. D) efferent nervous system. E) afferent nervous system. Answer: C