Deck 9: Nervous System

Question 1

The types of neurons that carry impulses away from the brain and spinal cord are called

A) motor neurons
B) sensory neurons
C) efferent neurons
D) both a and c above

Answer 1

D

Question 2

The two types of cells found in the nervous system are

A) motor neurons and sensory neurons
B) neurons and glia cells
C) glia cells and astrocytes
D) none of the above

Answer 2

B

Question 3

When the nerve impulse encounters a myelin-covered section of neuron

A) it moves more slowly than it would in nonmyelinated sections
B) it stops
C) it jumps over the myelin
D) none of the above

Answer 3

C

Question 4

Cells that are important in the blood-brain barrier are the

A) Schwann cells
B) microglia
C) astrocytes
D) oligodendrocytes

Question 5

When a section of the resting neuron is stimulated

A) sodium ions rush into the cell
B) sodium ions rush out of the cell
C) the interior of the cell becomes slightly positive
D) both a and c above

Question 6

The resting neuron

A) has a slight negative charge on the exterior
B) has a slight positive charge on the exterior
C) has an excess of sodium inside the cell
D) both a and c above

Question 7

Interneurons connect

A) efferent neurons to motor neurons
B) afferent neurons to sensory neurons
C) central neurons to afferent neurons
D) none of the above

Question 8

Glia cells that act as microbe-eating cells are the

A) Schwann cells
B) microglia
C) astrocytes
D) oligodendrocytes

Question 9

The difference between a three- and a two-neuron reflex is that a three-neuron reflex

A) passes through the dorsal root ganglion
B) includes an efferent neuron
C) includes an interneuron
D) includes an afferent neuron

Question 10

Neurotransmitters

A) are released by the postsynaptic neuron
B) are distributed randomly throughout the nervous system
C) can diffuse back into the synaptic knob
D) all of the above

Question 11

A synapse is

A) a gap between neurons
B) crossed by a chemical
C) separates the axon end of one neuron from the dendrite of the next
D) all of the above

Question 12

The tough fibrous sheath covering the whole nerve is called the

A) perineurium
B) fascicles
C) epineurium
D) none of the above

Question 13

The two principal divisions that make up the nervous system are the

A) central and sympathetic
B) sympathetic and parasympathetic
C) peripheral and central
D) peripheral and autonomic

Question 14

Reflexes can be

A) a single neuron
B) two neurons
C) three neurons
D) both b and c above

Question 15

Cells that produce myelin for the cells of the brain and spinal cord are the

A) Schwann cells
B) microglia
C) astrocytes
D) oligodendrocytes

Question 16

The part of the neuron that carries impulses away from the neuron cell body is the

A) dendrite
B) axon
C) neurolemma
D) node of Ranvier

Question 17

A synapse includes

A) a very narrow synaptic cleft
B) a presynaptic neuron with neurotransmitter receptor sites on its membrane
C) a postsynaptic neuron that releases the neurotransmitter
D) all of the above

Question 18

The part of the neuron that carries impulses to the neuron cell body is the

A) dendrite
B) axon
C) neurolemma
D) node of Ranvier

Question 19

The types of neurons that carry impulses to the brain and spinal cord are called

A) motor neurons
B) sensory neurons
C) efferent neurons
D) both b and c above

Question 20

Cells that produce myelin for cells outside the brain and spinal cord are the

A) Schwann cells
B) microglia
C) astrocytes
D) oligodendrocytes

Question 21

The parasympathetic nervous system

A) is also called the thoracolumbar system
B) is responsible for the "fight-or-flight" response
C) releases acetylcholine from its postganglionic axons
D) has neurons that enter the sympathetic chain ganglion

Question 22

The ridges in the cerebrum are called

A) sulci
B) gyri
C) corpus callosum
D) cerebral nuclei

Question 23

The autonomic nervous system consists of neurons that conduct impulses from the central nervous system to

A) cardiac muscle
B) smooth muscle
C) glandular tissue
D) all of the above

Question 24

A cerebrovascular accident (CVA)occurring in the occipital lobe of the cerebrum would affect

A) the ability to speak
B) motor coordination
C) vision
D) memory

Question 25

The regulation of the sleep cycle,water balance,and the production of antidiuretic hormone (ADH)occurs in the

A) hypothalamus
B) thalamus
C) medulla oblongata
D) cerebellum

Question 26

The axon of an afferent neuron could synapse with

A) a sense organ
B) a muscle cell
C) an interneuron
D) a gland

Question 27

An efferent neuron carries impulses in the direction opposite that of

A) a motor neuron
B) a sensory neuron
C) an afferent neuron
D) both b and c above

Question 28

The tough outer layer of meninges is called the

A) pia mater
B) arachnoid mater
C) dura mater
D) ventricles

Question 29

Which of the following is a morphinelike neurotransmitter that acts as a natural pain killer?

A) Endorphin
B) Acetylcholine
C) Dopamine
D) Epinephrine

Question 30

The brainstem includes the

A) medulla oblongata, pons, and thalamus
B) medulla oblongata, midbrain, and hypothalamus
C) pons, midbrain, and medulla oblongata
D) medulla oblongata, pons, and cerebellum

Question 31

An axon of an efferent neuron could synapse with

A) an interneuron
B) a sense organ
C) a muscle cell
D) either b or c above

Question 32

The association of sensation with emotion occurs in the

A) hypothalamus
B) thalamus
C) medulla oblongata
D) cerebellum

Question 33

The sympathetic nervous system

A) is called the thoracolumbar system
B) releases norepinephrine from its preganglionic axon
C) is called the craniosacral system
D) both a and b above

Question 34

The coordination of muscle movement and the maintenance of equilibrium occur in the

A) hypothalamus
B) thalamus
C) medulla oblongata
D) cerebellum

Question 35

The right and left sides of the cerebrum are connected by the

A) corpus callosum
B) sulcus
C) gyrus
D) basal ganglia

Question 36

Going from the interior to the exterior of a nerve,the layers of connective tissue would be

A) perineurium, epineurium, and fascicle
B) endoneurium, perineurium, and epineurium
C) epineurium, perineurium, and fascicle
D) epineurium, perineurium, and endoneurium

Question 37

The "vital centers" (the cardiac,respiratory,and vasomotor centers)are located in the

A) pons
B) midbrain
C) thalamus
D) medulla oblongata

Question 38

The functions of the spinal cord include

A) the primary reflex center
B) carrying motor impulses to the brain
C) carrying sensory impulses away from the brain
D) all of the above

Question 39

Which of the following neurotransmitter is a catecholamine?

A) Acetylcholine
B) Enkephalin
C) Endorphin
D) Dopamine

Question 40

Which axon releases norepinephrine?

A) A sympathetic preganglionic axon
B) A sympathetic postganglionic axon
C) A parasympathetic preganglionic axon
D) A parasympathetic postganglionic axon

Question 41

The lobe of the brain that deals with vision is the

A) frontal lobe
B) parietal lobe
C) occipital lobe
D) temporal lobe

Question 42

Which nervous system is also called the craniosacral nervous system?

A) Parasympathetic nervous system
B) Sympathetic nervous system
C) Both parasympathetic and sympathetic nervous systems

Question 43

Which structure is part of the diencephalon?

A) Midbrain
B) Hypothalamus
C) Medulla oblongata
D) All of the above are part of the diencephalon

Question 44

Postganglionic neurons release acetylcholine as part of which nervous system?

A) Parasympathetic nervous system
B) Sympathetic nervous system
C) Both parasympathetic and sympathetic nervous systems

Question 45

Which of the following is not considered part of the nervous system as a whole?

A) The brain
B) The spinal cord
C) The eyes
D) All of the above are considered part of the nervous system as a whole

Question 46

Which is also called the thoracolumbar nervous system?

A) Parasympathetic nervous system
B) Sympathetic nervous system
C) Both parasympathetic and sympathetic nervous systems

Question 47

Which nervous system dominates the control of effector organs under normal,everyday conditions?

A) Parasympathetic nervous system
B) Sympathetic nervous system
C) Both parasympathetic and sympathetic nervous systems

Question 48

These types of neurons are sometimes called connecting neurons

A) sensory neurons
B) interneurons
C) afferent neurons
D) motor neurons

Question 49

As part of which nervous system do postganglionic neurons release norepinephrine?

A) Parasympathetic nervous system
B) Sympathetic nervous system
C) Both parasympathetic and sympathetic nervous systems

Question 50

The somatic nervous system controls actions of

A) skeletal muscles
B) smooth muscles
C) glandular epithelial tissue
D) both b and c above

Question 51

Indentations between adjacent Schwann cells are called

A) the nodes of Ranvier
B) the myelin sheath
C) the neurolemma
D) none of the above

Question 52

As part of which nervous system do preganglionic neurons release acetylcholine?

A) Parasympathetic nervous system
B) Sympathetic nervous system
C) Both parasympathetic and sympathetic nervous systems

Question 53

As part of which nervous system do preganglionic neurons synapse with postganglionic neurons going to many different efferent organs?

A) Parasympathetic nervous system
B) Sympathetic nervous system
C) Both parasympathetic and sympathetic nervous systems

Question 54

The lobe of the brain that contains the auditory area is the

A) frontal lobe
B) parietal lobe
C) occipital lobe
D) temporal lobe

Question 55

In which nervous system does the synapse between the preganglionic and postganglionic neurons usually occur some distance away from the spinal cord?

A) Parasympathetic nervous system
B) Sympathetic nervous system
C) Both parasympathetic and sympathetic nervous systems

Question 56

Which of the following is a function of the thalamus?

A) Helps maintain body temperature
B) Associates sensation with emotion
C) Helps regulate water balance
D) All of the above are functions of the thalamus

Question 57

In which nervous system does the synapse of the preganglionic and postganglionic neurons usually occur close to the spinal cord?

A) Parasympathetic nervous system
B) Sympathetic nervous system
C) Both parasympathetic and sympathetic nervous systems

Question 58

The nervous system and this are the two body-wide communication systems.

A) Blood
B) Lymph
C) Endocrine
D) Cardiovascular system composed of both blood and the lymphatic system

Question 59

Which nervous system makes up part of the autonomic nervous system?

A) Parasympathetic nervous system
B) Sympathetic nervous system
C) Both parasympathetic and sympathetic nervous systems

Question 60

A group of nerve cell bodies in the peripheral nervous system is called a

A) synapse
B) ganglion
C) tract
D) plexus

Question 61

Sensory neurons are also called efferent neurons.

Question 62

Myelinated bundles of axons in the central nervous system are called

A) gray matter
B) tracts
C) white matter
D) both b and c above

Question 63

Some of the neurons in this structure function as endocrine glands

A) hypothalamus
B) thalamus
C) cerebellum
D) medulla oblongata

Question 64

The innermost membrane covering the brain and spinal cord is called the

A) dura mater
B) pia mater
C) arachnoid mater
D) cerebral mater

Question 65

A nerve impulse is also called a(n)

A) reflex
B) sensation
C) action potential
D) both b and c

Question 66

An axon transmits impulses toward the cell body.

Question 67

One of the most common types of brain tumors develops from glia cells.

Question 68

A glioma is

A) a type of tumor
B) a glia cell that forms the blood-brain barrier
C) a glia cell that form a myelin substance in the central nervous system
D) a glia cell that kills microorganisms

Question 69

There are two types of cells in the nervous system: neurons and glia cells.

Question 70

One of the differences between how the endocrine system and nervous system control body functions is the more rapid communication of the nervous system.

Question 71

The word glia comes from the Greek word meaning

A) found in the brain
B) glue
C) helper
D) protector

Question 72

Astrocytes produce myelin for the cells of the central nervous system.

Question 73

In the cerebrum,the islands of gray matter within the white matter are called the

A) cerebral basal nuclei
B) cerebral cortex
C) basal ganglia
D) both a and c above

Question 74

A nerve is

A) a long individual axon
B) a group of axons
C) a group of cell bodies
D) a group of dendrites

Question 75

Which of the following is not true of the cerebellum?

A) It is the second largest part of the brain.
B) It lies under the occipital lobe of the cerebrum.
C) It has gray matter tracts in its interior called the arbor vitae.
D) All of the above are true of the cerebellum.

Question 76

Motor neurons conduct impulses toward the central nervous system.

Question 77

The middle membrane covering the brain and spinal cord is called the

A) dura mater
B) pia mater
C) arachnoid mater
D) cerebral mater

Question 78

The total number of pairs of both spinal and cranial nerves is

A) 31
B) 12
C) 43
D) 56

Question 79

This neurotransmitter is not a catecholamine

A) dopamine
B) acetylcholine
C) serotonin
D) all of the above neurotransmitters are catecholamines

Question 80

Neurons can be classified based on the direction in which they transmit impulses.