Question 1

The descending spinal tract that crosses to the opposite side of the body within the medulla oblongata is the ________ tract.

Accepted Answer

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

Question 2

Your uncle was just diagnosed with a heart attack. One of his major symptoms is left arm pain. You are notsurprised because you are familiar with the phenomenon of ________ pain.

Accepted Answer

A)  referred 
B)  phantom 
C)  psychosomatic 
D)  somatic 
E)  neurogenic 
A)  referred 
B)  phantom 
C)  psychosomatic 
D)  somatic 
E)  neurogenic

Question 3

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 4

A mechanoreceptor in the papillary layer of the dermis that responds to fine touch is a

Accepted Answer

A)  tactile (Merkel) disc. 
B)  root hair plexus. 
C)  free nerve ending. 
D)  Bulbous corpuscle. 
E)  tactile (Meissner) corpuscle. 
A)  tactile (Merkel) disc. 
B)  root hair plexus. 
C)  free nerve ending. 
D)  Bulbous corpuscle. 
E)  tactile (Meissner) corpuscle.

Question 5

Thalamic neurons that project to the primary sensory cortex are ________ neurons.

Accepted Answer

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

Question 6

The afferent neuron that carries the sensation and enters the CNS is a ________ neuron.

Accepted Answer

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

Question 7

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 8

Action potentials from receptors involved in general sensations are interpreted in the

Accepted Answer

A)  premotor cortex. 
B)  primary sensory cortex. 
C)  general interpretive area. 
D)  mesencephalon. 
E)  reticular activating system. 
A)  premotor cortex. 
B)  primary sensory cortex. 
C)  general interpretive area. 
D)  mesencephalon. 
E)  reticular activating system.

Question 9

________ are receptors in the aorta that monitor the blood pressure.

Accepted Answer

A)  Chemoreceptors 
B)  Nociceptors 
C)  Baroreceptors 
D)  Proprioceptors 
E)  Hair cells 
A)  Chemoreceptors 
B)  Nociceptors 
C)  Baroreceptors 
D)  Proprioceptors 
E)  Hair cells

Question 10

In-Text Figure Based Questions
-Identify the descending (motor) tracts in the spinal cord. (Figure 15-10)

Accepted Answer

A)  anterior spinothalamic, posterior spinothalamic, lateral spinothalamic 
B)  anterior spinocerebellar, posterior spinocerebellar, lateral spinocerebellar 
C)  lateral corticospinal, anterior corticospinal, rubrospinal, medial and lateral reticulospinal,tectospinal, vestibulospinal 
D)  gracile fasciculus and cuneate fasciculus 
E)  medial lemniscus, anterior spinothalamic, posterior spinothalamic, anterior spinocerebellar,posterior spinocerebellar 
A)  anterior spinothalamic, posterior spinothalamic, lateral spinothalamic 
B)  anterior spinocerebellar, posterior spinocerebellar, lateral spinocerebellar 
C)  lateral corticospinal, anterior corticospinal, rubrospinal, medial and lateral reticulospinal,tectospinal, vestibulospinal 
D)  gracile fasciculus and cuneate fasciculus 
E)  medial lemniscus, anterior spinothalamic, posterior spinothalamic, anterior spinocerebellar,posterior spinocerebellar

Question 11

A sensory receptor characterized peripherally as a free nerve ending which centrally uses glutamate and/orsubstance P as neurotransmitters would most likely be a

Accepted Answer

A)  chemoreceptor. 
B)  mechanoreceptor. 
C)  thermoreceptor. 
D)  nociceptor. 
E)  free receptor. 
A)  chemoreceptor. 
B)  mechanoreceptor. 
C)  thermoreceptor. 
D)  nociceptor. 
E)  free receptor.

Question 12

Which of the following is/are sometimes called "prickling pain"?

Accepted Answer

A)  mechanical damage 
B)  proprioception 
C)  extremes of temperature 
D)  fast pain 
E)  fast and slow pain 
A)  mechanical damage 
B)  proprioception 
C)  extremes of temperature 
D)  fast pain 
E)  fast and slow pain

Question 13

A highly sensitive tactile receptor composed of dendritic processes of a single myelinated fiber that makescontact with specialized cells of the stratum basale is a

Accepted Answer

A)  lamellar corpuscle. 
B)  tactile (Meissner) corpuscle. 
C)  Bulbous corpuscle. 
D)  tactile (Merkel) disc. 
E)  root hair plexus. 
A)  lamellar corpuscle. 
B)  tactile (Meissner) corpuscle. 
C)  Bulbous corpuscle. 
D)  tactile (Merkel) disc. 
E)  root hair plexus.

Question 14

For the last few weeks, you have had an odd sensation on your upper thigh. When you touch the naked skin, it feels very strange, like you are touching your skin through layers of cloth. The surrounding area feels normal. Your doctor thinks that this may be related to spinal nerve damage related to a herniated disc. The doctor calls this change in sensation

Accepted Answer

A)  paresthesia. 
B)  anesthesia. 
C)  hypesthesia. 
D)  synesthesia. 
E)  kinesthesia. 
A)  paresthesia. 
B)  anesthesia. 
C)  hypesthesia. 
D)  synesthesia. 
E)  kinesthesia.

Question 15

The link between peripheral receptor and cortical neuron is called a(n)

Accepted Answer

A)  efferent pathway. 
B)  spinocortical line. 
C)  sympathetic chain. 
D)  adaptation pathway. 
E)  labeled line. 
A)  efferent pathway. 
B)  spinocortical line. 
C)  sympathetic chain. 
D)  adaptation pathway. 
E)  labeled line.

Question 16

Damage to the tectospinal tracts would interfere with the ability to

Accepted Answer

A)  position the arms. 
B)  monitor body position. 
C)  make reflex responses of the head and neck in response to sudden movements or loud noises. 
D)  control motor units located in the leg. 
E)  coordinate eating and swallowing movements. 
A)  position the arms. 
B)  monitor body position. 
C)  make reflex responses of the head and neck in response to sudden movements or loud noises. 
D)  control motor units located in the leg. 
E)  coordinate eating and swallowing movements.

Question 17

Figure 15-2 The Corticospinal Pathway

Use Figure 15-2 to answer the following questions:
-The axon labeled "2" synapses with which structure?

Accepted Answer

A)  1 
B)  3 
C)  4 
D)  5 
E)  6 
A)  1 
B)  3 
C)  4 
D)  5 
E)  6

Question 18

Sensations of burning or aching pain

Accepted Answer

A)  are carried by type A fibers. 
B)  reach the CNS quickly. 
C)  cause a generalized activation of the reticular formation and the thalamus. 
D)  are well localized. 
E)  are fast adapting. 
A)  are carried by type A fibers. 
B)  reach the CNS quickly. 
C)  cause a generalized activation of the reticular formation and the thalamus. 
D)  are well localized. 
E)  are fast adapting.

Question 19

Sensory encoding of the perceived location of a stimulus depends on

Accepted Answer

A)  the frequency of action potentials. 
B)  which labeled line is active. 
C)  the specific location of the cortical neuron that is stimulated. 
D)  the specific sensitivity of the peripheral receptor. 
E)  the number of receptors stimulated. 
A)  the frequency of action potentials. 
B)  which labeled line is active. 
C)  the specific location of the cortical neuron that is stimulated. 
D)  the specific sensitivity of the peripheral receptor. 
E)  the number of receptors stimulated.

Question 20

In-Text Figure Based Questions
-Describe the receptive field. (Figure 15-2)

Accepted Answer

A)  The area receptive to stimuli monitored by a single receptor cell. 
B)  The overlap where many receptors detect stimuli. 
C)  The distance the generator potential travels after receptor stimulation. 
D)  The distance covered by action potentials after receptor stimulation. 
E)  The areas of the brain that process the receptor stimuli. 
A)  The area receptive to stimuli monitored by a single receptor cell. 
B)  The overlap where many receptors detect stimuli. 
C)  The distance the generator potential travels after receptor stimulation. 
D)  The distance covered by action potentials after receptor stimulation. 
E)  The areas of the brain that process the receptor stimuli.

Exam 15: Sensory Pathways and the Somatic Nervous System

The descending spinal tract that crosses to the opposite side of the body within the medulla oblongata is the ________ tract.

Your uncle was just diagnosed with a heart attack. One of his major symptoms is left arm pain. You are notsurprised because you are familiar with the phenomenon of ________ pain.

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

A mechanoreceptor in the papillary layer of the dermis that responds to fine touch is a

Thalamic neurons that project to the primary sensory cortex are ________ neurons.

The afferent neuron that carries the sensation and enters the CNS is a ________ neuron.

Endorphins can reduce perception of sensations initiated by

Action potentials from receptors involved in general sensations are interpreted in the

________ are receptors in the aorta that monitor the blood pressure.

In-Text Figure Based Questions -Identify the descending (motor) tracts in the spinal cord. (Figure 15-10)

A sensory receptor characterized peripherally as a free nerve ending which centrally uses glutamate and/orsubstance P as neurotransmitters would most likely be a

Which of the following is/are sometimes called "prickling pain"?

A highly sensitive tactile receptor composed of dendritic processes of a single myelinated fiber that makescontact with specialized cells of the stratum basale is a

The link between peripheral receptor and cortical neuron is called a(n)

Damage to the tectospinal tracts would interfere with the ability to

Figure 15-2 The Corticospinal Pathway Use Figure 15-2 to answer the following questions: -The axon labeled "2" synapses with which structure?

Sensations of burning or aching pain

Sensory encoding of the perceived location of a stimulus depends on

In-Text Figure Based Questions -Describe the receptive field. (Figure 15-2)

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Bones and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Nervous 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, Nutrition, and Energetics

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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