Question 1

The conversion of the stimulus into an action potential to be interpreted by the brain is called

Accepted Answer

A) transformation. 
B) transduction. 
C) translation. 
D) transcription. 
E) transpotential. 
A) transformation. 
B) transduction. 
C) translation. 
D) transcription. 
E) transpotential.

Question 2

Feeling pain in the left arm during a heart attack is an example of ________ pain.

Accepted Answer

A) referred 
B) phantom 
C) cutaneous 
D) prickling 
E) adaptive 
A) referred 
B) phantom 
C) cutaneous 
D) prickling 
E) adaptive

Question 3

In the spinothalamic pathway,the sensory neuron that synapses with a neuron in the cerebral cortex is called the ________ neuron.

Accepted Answer

A) first-order 
B) second-order 
C) third-order 
D) fourth-order 
E) receptive 
A) first-order 
B) second-order 
C) third-order 
D) fourth-order 
E) receptive

Question 4

Figure 15-1 Spinothalamic Tracts
Use Figure 15-1 to answer the following questions:
-Where in the spinal cord is the structure labeled "2" located?

Accepted Answer

A) anterior gray horns 
B) dorsal root ganglion 
C) anterior white column 
D) anterior median fissure 
E) posterior white column 
A) anterior gray horns 
B) dorsal root ganglion 
C) anterior white column 
D) anterior median fissure 
E) posterior white column

Question 5

A reduction in sensitivity in the presence of a constant stimulus is referred to as

Accepted Answer

A) transduction. 
B) adaptation. 
C) negation. 
D) exhaustion 
E) transformation. 
A) transduction. 
B) adaptation. 
C) negation. 
D) exhaustion 
E) transformation.

Question 6

All of the following are true of a prickling pain sensations except that they

Accepted Answer

A) are carried by type A fibers. 
B) reach the CNS quickly. 
C) are interpreted by the pre-frontal cortex. 
D) receive conscious attention. 
E) often trigger somatic reflexes. 
A) are carried by type A fibers. 
B) reach the CNS quickly. 
C) are interpreted by the pre-frontal cortex. 
D) receive conscious attention. 
E) often trigger somatic reflexes.

Question 7

Figure 15-2 The Corticospinal Pathway
Use Figure 15-2 to answer the following questions:
-What occurs in this neural pathway at label "3"?

Accepted Answer

A) synapse 
B) communication between sensory and motor neurons 
C) amplification of motor signals 
D) decussation 
E) autonomic reflexes 
A) synapse 
B) communication between sensory and motor neurons 
C) amplification of motor signals 
D) decussation 
E) autonomic reflexes

Question 8

Which ascending tract carries the sensations for fine touch and vibration?

Accepted Answer

A) corticobulbar 
B) corticospinal 
C) posterior (dorsal)column 
D) spinothalamic 
E) spinobulbar 
A) corticobulbar 
B) corticospinal 
C) posterior (dorsal)column 
D) spinothalamic 
E) spinobulbar

Question 9

Receptors that monitor the position of joints belong to the category called

Accepted Answer

A) nociceptors. 
B) chemoreceptors. 
C) baroreceptors. 
D) proprioceptors. 
E) thermoreceptors. 
A) nociceptors. 
B) chemoreceptors. 
C) baroreceptors. 
D) proprioceptors. 
E) thermoreceptors.

Question 10

Which of the following kinds of information do fine-touch and light-pressure mechanoreceptors provide?

Accepted Answer

A) location of the stimulus 
B) shape of the stimulus 
C) texture of the stimulus 
D) movement of the stimulus 
E) All of the answers are correct. 
A) location of the stimulus 
B) shape of the stimulus 
C) texture of the stimulus 
D) movement of the stimulus 
E) All of the answers are correct.

Question 11

Tracts of the lateral and medial pathways include all of the following except ________ tracts.

Accepted Answer

A) corticospinal 
B) tectospinal 
C) rubrospinal 
D) reticulospinal 
E) vestibulospinal 
A) corticospinal 
B) tectospinal 
C) rubrospinal 
D) reticulospinal 
E) vestibulospinal

Question 12

Axons that decussate between the pyramids of the medulla oblongata belong to the ________ tracts.

Accepted Answer

A) anterior corticospinal 
B) lateral corticospinal 
C) vestibulospinal 
D) reticulospinal 
E) rubrospinal 
A) anterior corticospinal 
B) lateral corticospinal 
C) vestibulospinal 
D) reticulospinal 
E) rubrospinal

Question 13

Each of the following is an ascending tract in the spinal cord except the

Accepted Answer

A) fasciculus gracilis. 
B) fasciculus cuneatus. 
C) posterior spinocerebellar. 
D) reticulospinal tract. 
E) anterior spinothalamic. 
A) fasciculus gracilis. 
B) fasciculus cuneatus. 
C) posterior spinocerebellar. 
D) reticulospinal tract. 
E) anterior spinothalamic.

Question 14

Endorphins can reduce perception of sensations initiated by

Accepted Answer

A) nociceptors. 
B) mechanoreceptors. 
C) thermoreceptors. 
D) chemoreceptors. 
E) proprioceptors. 
A) nociceptors. 
B) mechanoreceptors. 
C) thermoreceptors. 
D) chemoreceptors. 
E) proprioceptors.

Question 15

The corticospinal system is often referred to as the

Accepted Answer

A) red nucleus. 
B) reticular formation. 
C) spinothalamic tracts. 
D) pyramidal system. 
E) medullary centers. 
A) red nucleus. 
B) reticular formation. 
C) spinothalamic tracts. 
D) pyramidal system. 
E) medullary centers.

Question 16

The cerebellum

Accepted Answer

A) functions to maintain proper posture and equilibrium. 
B) receives input from the motor cortex and basal ganglia. 
C) compares intended movement to actual movement. 
D) if damaged leads to uncoordinated and jerky movements. 
E) has all of these characteristics. 
A) functions to maintain proper posture and equilibrium. 
B) receives input from the motor cortex and basal ganglia. 
C) compares intended movement to actual movement. 
D) if damaged leads to uncoordinated and jerky movements. 
E) has all of these characteristics.

Question 17

How can an understanding of the neurotransmitters important in the function of the basal nuclei contribute to an understanding the underlying cause for Parkinson's disease?

Accepted Answer

Two distinct populations of neurons exis

Question 18

Examples of sensory stimuli include

Accepted Answer

A) touch. 
B) warmth. 
C) pain. 
D) vibration. 
E) All of the answers are correct. 
A) touch. 
B) warmth. 
C) pain. 
D) vibration. 
E) All of the answers are correct.

Question 19

The pyramidal system provides

Accepted Answer

A) voluntary control over skeletal muscles. 
B) voluntary control over smooth muscles. 
C) involuntary control over skeletal muscles. 
D) involuntary control over smooth muscles. 
E) involuntary control over cardiac muscle. 
A) voluntary control over skeletal muscles. 
B) voluntary control over smooth muscles. 
C) involuntary control over skeletal muscles. 
D) involuntary control over smooth muscles. 
E) involuntary control over cardiac muscle.

Question 20

Stimulation of a neuron that terminates in the superior region of the left postcentral gyrus would produce

Accepted Answer

A) a sensation in the right leg. 
B) a sensation in the lips. 
C) a muscle twitch in the right leg. 
D) a muscle twitch in the lips. 
E) both sensations and muscle twitches in the right leg. 
A) a sensation in the right leg. 
B) a sensation in the lips. 
C) a muscle twitch in the right leg. 
D) a muscle twitch in the lips. 
E) both sensations and muscle twitches in the right leg.

Exam 15: Sensory Pathways and the Somatic Nervous System

The conversion of the stimulus into an action potential to be interpreted by the brain is called

Feeling pain in the left arm during a heart attack is an example of ________ pain.

In the spinothalamic pathway,the sensory neuron that synapses with a neuron in the cerebral cortex is called the ________ neuron.

Figure 15-1 Spinothalamic Tracts Use Figure 15-1 to answer the following questions: -Where in the spinal cord is the structure labeled "2" located?

A reduction in sensitivity in the presence of a constant stimulus is referred to as

All of the following are true of a prickling pain sensations except that they

Figure 15-2 The Corticospinal Pathway Use Figure 15-2 to answer the following questions: -What occurs in this neural pathway at label "3"?

Which ascending tract carries the sensations for fine touch and vibration?

Receptors that monitor the position of joints belong to the category called

Which of the following kinds of information do fine-touch and light-pressure mechanoreceptors provide?

Tracts of the lateral and medial pathways include all of the following except ________ tracts.

Axons that decussate between the pyramids of the medulla oblongata belong to the ________ tracts.

Each of the following is an ascending tract in the spinal cord except the

Endorphins can reduce perception of sensations initiated by

The corticospinal system is often referred to as the

The cerebellum

How can an understanding of the neurotransmitters important in the function of the basal nuclei contribute to an understanding the underlying cause for Parkinson's disease?

Examples of sensory stimuli include

The pyramidal system provides

Stimulation of a neuron that terminates in the superior region of the left postcentral gyrus would produce

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

The Autonomic Nervous System and Higher-Order Functions

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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