Chapter 7 Anatomy

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1

T/F: The central nervous system includes the spinal nerves and cranial nerves.

FALSE

2

T/F: The parasympathetic and sympathetic nervous systems are subdivisions of the autonomic nervous system.

TRUE

3

T/F: Ependymal cells beat their cilia to help circulate cerebrospinal fluid (CSF).

TRUE

4

T/F: Gaps between adjacent Schwann cells of a myelin sheath are known as nodes of Ranvier.

TRUE

5

T/F: A sensory neuron carries stimuli from the central nervous system to the effector.

FALSE

6

T/F: Gray matter contains collections of unmyelinated fibers and cell bodies in the central nervous system.

TRUE

7

T/F: Neurons with two processes, an axon and a dendrite, are known as bipolar neurons.

TRUE

8

T/F: A graded potential is also known as a nerve impulse

FALSE

9

T/F: Depolarization of neurons results from the entry of sodium ions into the cell

TRUE

10

T/F: The withdrawal, or flexor, reflex is one of the only voluntary reflexes

FALSE

11

T/F: The primary motor area allows us to consciously move our skeletal muscles.

TRUE

12

T/F: Difficulty in breathing may reflect damage to respiratory centers located in the cerebellum.

FALSE

13

T/F: One of the major functions of the pons is to produce releasing factors that control the function of the anterior pituitary.

FALSE

14

T/F: The thalamus plays a role in regulation of body temperature, metabolism, and water balance

FALSE

15

T/F: Cerebrospinal fluid circulates within the ventricles of the brain and also in the subarachnoid space outside the brain.

TRUE

16

T/F: The collection of spinal nerves at the inferior end of the spinal cord is called the cauda equina

TRUE

17

T/F: There is no possibility of damaging the spinal cord below the third lumbar vertebra.

TRUE

18

T/F: The ventral and dorsi rami of each spinal nerve contain both sensory and motor nerves.

TRUE

19

T/F: Cranial nerve X is the vestibulocochlear nerve, its fibers carry sensations of hearing and equilibrium to the brain.

FALSE

20

T/F: There are 31 pairs of cranial nerves and 12 pairs of spinal nerves.

FALSE

21

T/F: Complex networks of spinal nerves are termed nerve plexuses.

TRUE

22

T/F: Sympathetic postganglionic fibers release norepinephrine and the preganglionic axon releases acetylcholine.

TRUE

23

T/F: Both the parasympathetic and sympathetic nervous systems operate with a chain of two motor neurons.

TRUE

24

T/F: The parasympathetic division is also called the craniosacral division since the preganglionic neurons originate in the brain and sacral region of the spinal cord.

TRUE

25

T/F: The usual cause of nervous system deterioration as we age is circulatory system problems

TRUE

26

Structural nervous system subdivision that consists of the brain and spinal cord

A) Sensory (afferent) division

B) Peripheral nervous system (PNS)

C) Central nervous system (CNS)

D) Motor (efferent) division

E) Autonomic nervous system (ANS)

C

27

Functional nervous system subdivision that carries information toward the central nervous system from receptors

A) Sensory (afferent) division

B) Peripheral nervous system (PNS)

C) Central nervous system (CNS)

D) Motor (efferent) division

E) Autonomic nervous system (ANS)

A

28

Structural nervous system subdivision that consists of spinal nerves and cranial nerves

A) Sensory (afferent) division

B) Peripheral nervous system (PNS)

C) Central nervous system (CNS)

D) Motor (efferent) division

E) Autonomic nervous system (ANS)

B

29

Subdivision of the motor division responsible for controlling involuntary events

A) Sensory (afferent) division

B) Peripheral nervous system (PNS)

C) Central nervous system (CNS)

D) Motor (efferent) division

E) Autonomic nervous system (ANS)

E

30

Functional nervous system division that carries information from the central nervous system toward effectors

A) Sensory (afferent) division

B) Peripheral nervous system (PNS)

C) Central nervous system (CNS)

D) Motor (efferent) division

E) Autonomic nervous system (ANS)

D

31

Thalamus, hypothalamus, and epithalamus

A) cerebellum

B) brain stem

C) cerebrum

D) diencephalon

D

32

Primary somatic sensory area

A) cerebellum

B) brain stem

C) cerebrum

D) diencephalon

C

33

Primary motor area

A) cerebellum

B) brain stem

C) cerebrum

D) diencephalon

C

34

Pons, midbrain, and medulla oblongata

A) cerebellum

B) brain stem

C) cerebrum

D) diencephalon

B

35

Reticular formation

A) cerebellum

B) brain stem

C) cerebrum

D) diencephalon

B

36

Controls balance and equilibrium

A) cerebellum

B) brain stem

C) cerebrum

D) diencephalon

A

37

Includes the cerebral peduncles and the corpora quadrigemina

A) thalamus

B) pituitary gland

C) epithalamus

D) medulla oblongata

E) midbrain

E

38

Contains centers that control heart rate, blood pressure, breathing, swallowing, and vomiting

A) thalamus

B) pituitary gland

C) epithalamus

D) medulla oblongata

E) hypothalamus

F) midbrain

D

39

Gland that hangs from the hypothalamus

A) thalamus

B) pituitary gland

C) epithalamus

D) medulla oblongata

E) hypothalamus

F) midbrain

B

40

Regulates body temperature, water balance, and metabolism

A) thalamus

B) pituitary gland

C) epithalamus

D) medulla oblongata

E) hypothalamus

F) midbrain

E

41

Relay station for sensory impulses passing to the sensory cortex

A) thalamus

B) pituitary gland

C) epithalamus

D) medulla oblongata

E) hypothalamus

F) midbrain

A

42

Includes the pineal gland and choroid plexus of the third ventricle

A) thalamus

B) pituitary gland

C) epithalamus

D) medulla oblongata

E) hypothalamus

F) midbrain

C

43

Decreases heart rate

A) Parasympathetic nervous system

B) Sympathetic nervous system

A

44

Stimulates sweat glands to produce perspiration

A) Parasympathetic nervous system

B) Sympathetic nervous system

B

45

Decreases digestive system activities

A) Parasympathetic nervous system

B) Sympathetic nervous system

B

46

Constricts bronchioles of respiratory passageways

A) Parasympathetic nervous system

B) Sympathetic nervous system

A

47

No effect on most blood vessels

A) Parasympathetic nervous system

B) Sympathetic nervous system

A

48

Decreases urine output of the kidneys

A) Parasympathetic nervous system

B) Sympathetic nervous system

B

49

Increases metabolic rate

A) Parasympathetic nervous system

B) Sympathetic nervous system

B

50

Increases the release of epinephrine from the adrenal medulla

A) Parasympathetic nervous system

B) Sympathetic nervous system

B