Question 1

The neurilemma of axons in the peripheral nervous system is the outer layer of

Accepted Answer

A)  astrocytes. 
B)  Schwann cells. 
C)  oligodendrocytes. 
D)  microglia. 
E)  ependymal cells. 
A)  astrocytes. 
B)  Schwann cells. 
C)  oligodendrocytes. 
D)  microglia. 
E)  ependymal cells.

Question 2

The surface of the postcentral gyrus contains the

Accepted Answer

A)  primary sensory cortex. 
B)  primary motor cortex. 
C)  visual cortex. 
D)  olfactory cortex. 
E)  auditory cortex. 
A)  primary sensory cortex. 
B)  primary motor cortex. 
C)  visual cortex. 
D)  olfactory cortex. 
E)  auditory cortex.

Question 3

The primary motor cortex of the cerebrum is located in the

Accepted Answer

A)  cerebellum. 
B)  precentral gyrus. 
C)  pons. 
D)  lateral sulcus. 
E)  postcentral gyrus. 
A)  cerebellum. 
B)  precentral gyrus. 
C)  pons. 
D)  lateral sulcus. 
E)  postcentral gyrus.

Question 4

Photo Credit: Ralph T. Hutchings
Figure 8-1 Structural Components of the Brain (Sagittal Section)
Use Figure 8-1 to identify the labeled part.
-Structure B is the

Accepted Answer

A)  lateral sulcus. 
B)  precentral gyrus. 
C)  cerebral aqueduct. 
D)  central sulcus. 
E)  postcentral gyrus. 
A)  lateral sulcus. 
B)  precentral gyrus. 
C)  cerebral aqueduct. 
D)  central sulcus. 
E)  postcentral gyrus.

Question 5

The brachial plexus nerve that innervates the flexor muscles of the arm and forearm and the skin on the lateral surface of the forearm is the ________ nerve.

Accepted Answer

A)  ulnar 
B)  radial 
C)  median 
D)  axillary 
E)  musculocutaneous 
A)  ulnar 
B)  radial 
C)  median 
D)  axillary 
E)  musculocutaneous

Question 6

Monosynaptic reflexes

Accepted Answer

A)  are among the most complex reflex arcs. 
B)  involve two or more sequential synapses. 
C)  usually control slow motor responses. 
D)  do not control stereotyped responses of the nervous system. 
E)  are exemplified by the stretch reflex. 
A)  are among the most complex reflex arcs. 
B)  involve two or more sequential synapses. 
C)  usually control slow motor responses. 
D)  do not control stereotyped responses of the nervous system. 
E)  are exemplified by the stretch reflex.

Question 7

Which cranial nerve is responsible for the sensory innervation of the anterior two-thirds of the tongue?

Accepted Answer

A)  V 
B)  IX 
C)  III 
D)  VII 
E)  VI 
A)  V 
B)  IX 
C)  III 
D)  VII 
E)  VI

Question 8

In general, the nervous system

Accepted Answer

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. 
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.

Question 9

Which of the following neurotransmitters usually depolarizes postsynaptic neurons?

Accepted Answer

A)  serotonin 
B)  dopamine 
C)  GABA 
D)  acetylcholine 
E)  monoamine oxidase 
A)  serotonin 
B)  dopamine 
C)  GABA 
D)  acetylcholine 
E)  monoamine oxidase

Question 10

Most neurons in the brain are

Accepted Answer

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

Question 11

Identify the correct sequence of steps in the generation of an action potential. 1. Activation of sodium channels and rapid depolarization
2) Inactivation of sodium channels and activation of potassium channels
3) Depolarization to threshold
4) Closing of potassium channels

Accepted Answer

A)  1, 3, 4, 2 
B)  3, 1, 2, 4 
C)  4, 3, 2, 1 
D)  1, 3, 2, 4 
E)  3, 1, 4, 2 
A)  1, 3, 4, 2 
B)  3, 1, 2, 4 
C)  4, 3, 2, 1 
D)  1, 3, 2, 4 
E)  3, 1, 4, 2

Question 12

Which pathway begins at the pyramidal cells of the cerebral cortex?

Accepted Answer

A)  posterior column 
B)  medial 
C)  spinocerebellar 
D)  lateral 
E)  corticospinal 
A)  posterior column 
B)  medial 
C)  spinocerebellar 
D)  lateral 
E)  corticospinal

Question 13

The cranial nerves whose primary function is special sensory are

Accepted Answer

A)  VIII, IX, and XII. 
B)  III, IV, and VI. 
C)  II, III, and IV. 
D)  I, II, and VIII. 
E)  I, III, and V. 
A)  VIII, IX, and XII. 
B)  III, IV, and VI. 
C)  II, III, and IV. 
D)  I, II, and VIII. 
E)  I, III, and V.

Question 14

The projections of gray matter extending through the white matter toward the outer surface of the spinal cord are called

Accepted Answer

A)  wings. 
B)  horns. 
C)  pyramids. 
D)  fibers. 
E)  tracts. 
A)  wings. 
B)  horns. 
C)  pyramids. 
D)  fibers. 
E)  tracts.

Question 15

The thalamus is the largest portion of which major brain region?

Accepted Answer

A)  mesencephalon 
B)  pons 
C)  midbrain 
D)  diencephalon 
E)  cerebellum 
A)  mesencephalon 
B)  pons 
C)  midbrain 
D)  diencephalon 
E)  cerebellum

Question 16

Jenny has had a stroke, caused by a blood clot obstructing blood flow to her left parietal lobe. She seems to have a problem with understanding words and concepts now, but her speech and hearing are fine. What specific area of the brain has been damaged? What support do you have for your choice?

Accepted Answer

A clue is that the damage is in the left

Question 17

Which of the following pairs is not properly matched?

Accepted Answer

A)  cervical spinal nerves: 8 
B)  thoracic spinal nerves: 12 
C)  lumbar spinal nerves: 4 
D)  sacral spinal nerves: 5 
E)  coccygeal spinal nerves: 1 
A)  cervical spinal nerves: 8 
B)  thoracic spinal nerves: 12 
C)  lumbar spinal nerves: 4 
D)  sacral spinal nerves: 5 
E)  coccygeal spinal nerves: 1

Question 18

Nerve trunks containing axons derived from several spinal nerves originate from

Accepted Answer

A)  cranial nerves. 
B)  conjoined spinal nerves. 
C)  lateral nerve groups. 
D)  tracts. 
E)  plexuses. 
A)  cranial nerves. 
B)  conjoined spinal nerves. 
C)  lateral nerve groups. 
D)  tracts. 
E)  plexuses.

Question 19

The midbrain has a slender CSF-filled canal known as the

Accepted Answer

A)  cerebral aqueduct. 
B)  lateral ventricle. 
C)  medulla oblongata. 
D)  fourth ventricle. 
E)  third ventricle. 
A)  cerebral aqueduct. 
B)  lateral ventricle. 
C)  medulla oblongata. 
D)  fourth ventricle. 
E)  third ventricle.

Question 20

Which of the following is the most sensitive body region?

Accepted Answer

A)  chest 
B)  face 
C)  feet 
D)  back 
E)  legs 
A)  chest 
B)  face 
C)  feet 
D)  back 
E)  legs

The neurilemma of axons in the peripheral nervous system is the outer layer of

The surface of the postcentral gyrus contains the

The primary motor cortex of the cerebrum is located in the

Photo Credit: Ralph T. Hutchings Figure 8-1 Structural Components of the Brain (Sagittal Section) Use Figure 8-1 to identify the labeled part. -Structure B is the

The brachial plexus nerve that innervates the flexor muscles of the arm and forearm and the skin on the lateral surface of the forearm is the ________ nerve.

Monosynaptic reflexes

Which cranial nerve is responsible for the sensory innervation of the anterior two-thirds of the tongue?

In general, the nervous system

Which of the following neurotransmitters usually depolarizes postsynaptic neurons?

Most neurons in the brain are

Identify the correct sequence of steps in the generation of an action potential. 1. Activation of sodium channels and rapid depolarization 2) Inactivation of sodium channels and activation of potassium channels 3) Depolarization to threshold 4) Closing of potassium channels

Which pathway begins at the pyramidal cells of the cerebral cortex?

The cranial nerves whose primary function is special sensory are

The projections of gray matter extending through the white matter toward the outer surface of the spinal cord are called

The thalamus is the largest portion of which major brain region?

Jenny has had a stroke, caused by a blood clot obstructing blood flow to her left parietal lobe. She seems to have a problem with understanding words and concepts now, but her speech and hearing are fine. What specific area of the brain has been damaged? What support do you have for your choice?

Which of the following pairs is not properly matched?

Nerve trunks containing axons derived from several spinal nerves originate from

The midbrain has a slender CSF-filled canal known as the

Which of the following is the most sensitive body region?

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

Cell Structure and Function

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

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Exam 8: The Nervous System

The neurilemma of axons in the peripheral nervous system is the outer layer of

The surface of the postcentral gyrus contains the

The primary motor cortex of the cerebrum is located in the

Photo Credit: Ralph T. Hutchings Figure 8-1 Structural Components of the Brain (Sagittal Section) Use Figure 8-1 to identify the labeled part. -Structure B is the

The brachial plexus nerve that innervates the flexor muscles of the arm and forearm and the skin on the lateral surface of the forearm is the ________ nerve.

Monosynaptic reflexes

Which cranial nerve is responsible for the sensory innervation of the anterior two-thirds of the tongue?

In general, the nervous system

Which of the following neurotransmitters usually depolarizes postsynaptic neurons?

Most neurons in the brain are

Identify the correct sequence of steps in the generation of an action potential. 1. Activation of sodium channels and rapid depolarization 2) Inactivation of sodium channels and activation of potassium channels 3) Depolarization to threshold 4) Closing of potassium channels

Which pathway begins at the pyramidal cells of the cerebral cortex?

The cranial nerves whose primary function is special sensory are

The projections of gray matter extending through the white matter toward the outer surface of the spinal cord are called

The thalamus is the largest portion of which major brain region?

Jenny has had a stroke, caused by a blood clot obstructing blood flow to her left parietal lobe. She seems to have a problem with understanding words and concepts now, but her speech and hearing are fine. What specific area of the brain has been damaged? What support do you have for your choice?

Which of the following pairs is not properly matched?

Nerve trunks containing axons derived from several spinal nerves originate from

The midbrain has a slender CSF-filled canal known as the

Which of the following is the most sensitive body region?

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

Cell Structure and Function

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

The Reproductive System

Development and Inheritance

Filters