Question 1

Tendon organs contain intrafusal fibers.

Accepted Answer

A) True 
 B)False

Question 2

Ascending somatic sensory pathways to the cerebral cortex consist of thousands of sets of three neurons: first-order neurons, second-order neurons, and third-order neurons.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following cutaneous receptors are responsible for fine touch?
1) type I cutaneous mechanoreceptors
2) end organs of Ruffini
3) type II cutaneous mechanoreceptors
4) corpuscles of touch (Meissner corpuscles)

Accepted Answer

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

Question 4

Make a diagram showing the locations of the neuronal components of the anterolateral (spinothalamic) pathways and describe the functions of the pathways.

Accepted Answer

See Fig. 2

Question 5

Which of the following proprioceptors contain dendrites of slowly adapting sensory neurons?
1) muscle spindles
2) tendon organs
3) joint kinesthetic receptors

Accepted Answer

A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 2 
A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 2

Question 6

Which of the following is a sensation that is NOT carried by the spinothalamic pathways?

Accepted Answer

A)  pain 
B)  itch 
C)  tickle 
D)  proprioception 
A)  pain 
B)  itch 
C)  tickle 
D)  proprioception

Question 7

Which of the following is classified as a special sense?

Accepted Answer

A)  touch 
B)  pain 
C)  equilibrium 
D)  vibration 
A)  touch 
B)  pain 
C)  equilibrium 
D)  vibration

Question 8

Pyramidal pathways:

Accepted Answer

A)  innervate skeletal muscles only. 
B)  contain upper motor neurons and lower motor neurons. 
C)  extend from the cerebral cortex, through the medulla, and then to their destination, either through cranial nerves or through spinal cord tracts and spinal nerves. 
D)  all of these choices 
A)  innervate skeletal muscles only. 
B)  contain upper motor neurons and lower motor neurons. 
C)  extend from the cerebral cortex, through the medulla, and then to their destination, either through cranial nerves or through spinal cord tracts and spinal nerves. 
D)  all of these choices

Question 9

Which of the following develop as specialized muscle fibers?

Accepted Answer

A)  tendon organs 
B)  hair cells of the inner ear 
C)  muscle spindles 
D)  joint kinesthetic receptors 
A)  tendon organs 
B)  hair cells of the inner ear 
C)  muscle spindles 
D)  joint kinesthetic receptors

Question 10

Visceral senses and somatic senses are grouped together in the class called general senses.

Accepted Answer

A) True 
 B)False

Question 11

_____ is the conscious awareness and interpretation of a sensation.

Accepted Answer

A)  Modality 
B)  Adaptation 
C)  Perception 
D)  Integration 
E)  Proprioception 
A)  Modality 
B)  Adaptation 
C)  Perception 
D)  Integration 
E)  Proprioception

Question 12

A person is only truly in a coma when all reflex activity ceases.

Accepted Answer

A) True 
 B)False

Question 13

The majority of commands from the motor cortex to skeletal muscles travel via the anterior corticospinal tracts in the spinal cord.

Accepted Answer

A) True 
 B)False

Question 14

The receptors for pain, temperature, itch and tickle are all free nerve endings.

Accepted Answer

A) True 
 B)False

Question 15

Proprioceptive information may be conveyed to the cerebellum via sensory neurons that travel in spinocerebellar tracts.

Accepted Answer

A) True 
 B)False

Question 16

Referred pain site for the kidneys

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
A)  A 
B)  B 
C)  C 
D)  D

Question 17

The receptors for pain:

Accepted Answer

A)  are free nerve endings called nociceptors. 
B)  may be stimulated by chemicals released by injured tissues. 
C)  respond to any type of stimulus if it is of sufficient intensity. 
D)  all of these choices 
A)  are free nerve endings called nociceptors. 
B)  may be stimulated by chemicals released by injured tissues. 
C)  respond to any type of stimulus if it is of sufficient intensity. 
D)  all of these choices

Question 18

Select the best description for the function of the tectospinal tract:

Accepted Answer

A)  impulses for coordination of movements of the trunk and proximal parts of the limbs 
B)  impulses that move the head and eyes in response to visual or auditory stimuli 
C)  conveys nerve impulses from motor cortex to skeletal muscles of head and neck to coordinate precise, voluntary movements 
D)  impulses for subconscious proprioception 
E)  impulses for precise voluntary movements of the hands and feet 
A)  impulses for coordination of movements of the trunk and proximal parts of the limbs 
B)  impulses that move the head and eyes in response to visual or auditory stimuli 
C)  conveys nerve impulses from motor cortex to skeletal muscles of head and neck to coordinate precise, voluntary movements 
D)  impulses for subconscious proprioception 
E)  impulses for precise voluntary movements of the hands and feet

Question 19

Final common pathways consist of:

Accepted Answer

A)  upper motor neurons. 
B)  lower motor neurons. 
C)  upper and lower motor neurons. 
D)  interneurons. 
A)  upper motor neurons. 
B)  lower motor neurons. 
C)  upper and lower motor neurons. 
D)  interneurons.

Question 20

_____ is defined as the conscious or subconscious awareness of changes in the external or internal conditions of the body.

Accepted Answer

A)  Sensation 
B)  Adaptation 
C)  Perception 
D)  Reception 
A)  Sensation 
B)  Adaptation 
C)  Perception 
D)  Reception

Exam 20: Somatic Senses and Motor Control

Tendon organs contain intrafusal fibers.

Ascending somatic sensory pathways to the cerebral cortex consist of thousands of sets of three neurons: first-order neurons, second-order neurons, and third-order neurons.

Which of the following cutaneous receptors are responsible for fine touch? 1) type I cutaneous mechanoreceptors 2) end organs of Ruffini 3) type II cutaneous mechanoreceptors 4) corpuscles of touch (Meissner corpuscles)

Make a diagram showing the locations of the neuronal components of the anterolateral (spinothalamic) pathways and describe the functions of the pathways.

Which of the following proprioceptors contain dendrites of slowly adapting sensory neurons? 1) muscle spindles 2) tendon organs 3) joint kinesthetic receptors

Which of the following is a sensation that is NOT carried by the spinothalamic pathways?

Which of the following is classified as a special sense?

Pyramidal pathways:

Which of the following develop as specialized muscle fibers?

Visceral senses and somatic senses are grouped together in the class called general senses.

_____ is the conscious awareness and interpretation of a sensation.

A person is only truly in a coma when all reflex activity ceases.

The majority of commands from the motor cortex to skeletal muscles travel via the anterior corticospinal tracts in the spinal cord.

The receptors for pain, temperature, itch and tickle are all free nerve endings.

Proprioceptive information may be conveyed to the cerebellum via sensory neurons that travel in spinocerebellar tracts.

Referred pain site for the kidneys

The receptors for pain:

Select the best description for the function of the tectospinal tract:

Final common pathways consist of:

_____ is defined as the conscious or subconscious awareness of changes in the external or internal conditions of the body.

An Introduction to the Human Body

Cells

Tissues

Development

The Integumentary System

Bone Tissue

The Skeletal System: the Axial Skeleton

The Skeletal System: the Appendicular Skeleton

Joints

Muscular Tissue

The Muscular System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels

The Lymphatic System and Immunity

Nervous Tissue

The Spinal Cord and the Spinal Nerves

The Brain and the Cranial Nerves

The Autonomic Nervous System

Special Senses

The Endocrine System

The Respiratory System

The Digestive System

The Urinary System

The Reproductive Systems

Surface Anatomy

Filters