Question 1

When a cerebrospinal fluid specimen is needed for testing,the specimen is removed by needle from the L3-L4 interspace area of the vertebral column.Why?

Accepted Answer

A) There are no spaces between the other areas of the vertebral column. 
B) There is a higher pressure within the subarachnoid space at that point,so it is easier to obtain a specimen. 
C) There are no spinal nerves located in that area. 
D) There would be no possible damage to the spinal cord itself when the needle is inserted into the space. 
E) The space where the needle is inserted is larger than anywhere else along the vertebral column. 
A) There are no spaces between the other areas of the vertebral column. 
B) There is a higher pressure within the subarachnoid space at that point,so it is easier to obtain a specimen. 
C) There are no spinal nerves located in that area. 
D) There would be no possible damage to the spinal cord itself when the needle is inserted into the space. 
E) The space where the needle is inserted is larger than anywhere else along the vertebral column.

Question 2

Meningitis is a condition in which the meninges of the brain become inflamed as the result of a viral or bacterial infection.This condition can be life-threatening.Explain why.

Accepted Answer

As in any inflamed tissue,there is edema

Question 3

The all-or-none principle states that

Accepted Answer

A) all stimuli will produce identical action potentials. 
B) all stimuli great enough to bring the membrane to threshold will produce identical action potentials. 
C) the greater the magnitude of the stimuli,the greater the intensity of the action potential. 
D) only sensory stimuli can activate action potentials. 
E) only motor stimuli can activate action potentials. 
A) all stimuli will produce identical action potentials. 
B) all stimuli great enough to bring the membrane to threshold will produce identical action potentials. 
C) the greater the magnitude of the stimuli,the greater the intensity of the action potential. 
D) only sensory stimuli can activate action potentials. 
E) only motor stimuli can activate action potentials.

Question 4

Structure H is the

Accepted Answer

A) midbrain. 
B) medulla oblongata. 
C) cerebellum. 
D) basal ganglia. 
E) pons. 
A) midbrain. 
B) medulla oblongata. 
C) cerebellum. 
D) basal ganglia. 
E) pons.

Question 5

Which spinal cord structure(s)contains the axons of CNS motor neurons that control muscles and glands?

Accepted Answer

A) anterior gray commissure 
B) white column 
C) ventral roots 
D) dorsal roots 
E) ventral horns 
A) anterior gray commissure 
B) white column 
C) ventral roots 
D) dorsal roots 
E) ventral horns

Question 6

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 7

The cortex inferior to the lateral sulcus is the

Accepted Answer

A) parietal lobe. 
B) temporal lobe. 
C) frontal lobe. 
D) occipital lobe. 
E) cerebellar lobe. 
A) parietal lobe. 
B) temporal lobe. 
C) frontal lobe. 
D) occipital lobe. 
E) cerebellar lobe.

Question 8

Pulling away from a painful stimulus is an example of a(n)________ reflex.

Accepted Answer

A) cross-extensor 
B) pupillary 
C) withdrawal 
D) knee-jerk 
E) ankle-jerk 
A) cross-extensor 
B) pupillary 
C) withdrawal 
D) knee-jerk 
E) ankle-jerk

Question 9

The visual cortex is located in the

Accepted Answer

A) frontal lobe. 
B) parietal lobe. 
C) temporal lobe. 
D) occipital lobe. 
E) cerebellum. 
A) frontal lobe. 
B) parietal lobe. 
C) temporal lobe. 
D) occipital lobe. 
E) cerebellum.

Question 10

Structure L is the

Accepted Answer

A) midbrain. 
B) forebrain. 
C) cerebellum. 
D) basal ganglia. 
E) brainstem. 
A) midbrain. 
B) forebrain. 
C) cerebellum. 
D) basal ganglia. 
E) brainstem.

Question 11

The ________ establishes emotional states.

Accepted Answer

A) basal nuclei 
B) limbic system 
C) cerebellum 
D) midbrain 
E) pons 
A) basal nuclei 
B) limbic system 
C) cerebellum 
D) midbrain 
E) pons

Question 12

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 13

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

Accepted Answer

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 
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

Question 14

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 15

The spinothalamic tracts function in

Accepted Answer

A) involuntary motor activities. 
B) autonomic function. 
C) general sensation delivery. 
D) equilibrium delivery. 
E) control of skeletal muscles. 
A) involuntary motor activities. 
B) autonomic function. 
C) general sensation delivery. 
D) equilibrium delivery. 
E) control of skeletal muscles.

Question 16

Which of the following is a descending pathway of the spinal cord?

Accepted Answer

A) posterior column 
B) spinothalamic 
C) corticospinal 
D) spinocerebellar 
E) proprioceptive 
A) posterior column 
B) spinothalamic 
C) corticospinal 
D) spinocerebellar 
E) proprioceptive

Question 17

Small phagocytic glial cells,which are derived from white blood cells,are called

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 18

The flexor reflex

Accepted Answer

A) prevents a muscle from overstretching. 
B) prevents a muscle from generating damaging tension. 
C) is a withdrawal reflex. 
D) makes adjustments in other parts of the body in response to a particular stimulus. 
E) is an example of a monosynaptic reflex. 
A) prevents a muscle from overstretching. 
B) prevents a muscle from generating damaging tension. 
C) is a withdrawal reflex. 
D) makes adjustments in other parts of the body in response to a particular stimulus. 
E) is an example of a monosynaptic reflex.

Question 19

The primary connection between cerebral hemispheres is the

Accepted Answer

A) cerebellum. 
B) precentral gyrus. 
C) postcentral gyrus. 
D) midbrain. 
E) corpus callosum. 
A) cerebellum. 
B) precentral gyrus. 
C) postcentral gyrus. 
D) midbrain. 
E) corpus callosum.

Question 20

You bowl with your right arm,but you write with your left hand.This is related to differences in the

Accepted Answer

A) cerebral hemispheres. 
B) hypothalamus. 
C) thalamus. 
D) medulla oblongata. 
E) hippocampus. 
A) cerebral hemispheres. 
B) hypothalamus. 
C) thalamus. 
D) medulla oblongata. 
E) hippocampus.

When a cerebrospinal fluid specimen is needed for testing,the specimen is removed by needle from the L3-L4 interspace area of the vertebral column.Why?

Meningitis is a condition in which the meninges of the brain become inflamed as the result of a viral or bacterial infection.This condition can be life-threatening.Explain why.

The all-or-none principle states that

Structure H is the

Which spinal cord structure(s)contains the axons of CNS motor neurons that control muscles and glands?

Most neurons in the brain are

The cortex inferior to the lateral sulcus is the

Pulling away from a painful stimulus is an example of a(n)________ reflex.

The visual cortex is located in the

Structure L is the

The ________ establishes emotional states.

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.

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

The surface of the postcentral gyrus contains the

The spinothalamic tracts function in

Which of the following is a descending pathway of the spinal cord?

Small phagocytic glial cells,which are derived from white blood cells,are called

The flexor reflex

The primary connection between cerebral hemispheres is the

You bowl with your right arm,but you write with your left hand.This is related to differences in the

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

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Exam 8: The Nervous System

When a cerebrospinal fluid specimen is needed for testing,the specimen is removed by needle from the L3-L4 interspace area of the vertebral column.Why?

Meningitis is a condition in which the meninges of the brain become inflamed as the result of a viral or bacterial infection.This condition can be life-threatening.Explain why.

The all-or-none principle states that

Structure H is the

Which spinal cord structure(s)contains the axons of CNS motor neurons that control muscles and glands?

Most neurons in the brain are

The cortex inferior to the lateral sulcus is the

Pulling away from a painful stimulus is an example of a(n)________ reflex.

The visual cortex is located in the

Structure L is the

The ________ establishes emotional states.

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.

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

The surface of the postcentral gyrus contains the

The spinothalamic tracts function in

Which of the following is a descending pathway of the spinal cord?

Small phagocytic glial cells,which are derived from white blood cells,are called

The flexor reflex

The primary connection between cerebral hemispheres is the

You bowl with your right arm,but you write with your left hand.This is related to differences in the

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