Question 1

So-called fast muscle fibers

Accepted Answer

A)  are pale. 
B)  are bright red. 
C)  can generate great force for long periods. 
D)  are found exclusively in extensors. 
E)  are found exclusively in flexors. 
A)  are pale. 
B)  are bright red. 
C)  can generate great force for long periods. 
D)  are found exclusively in extensors. 
E)  are found exclusively in flexors.

Question 2

Intrafusal is to extrafusal as

Accepted Answer

A)  voluntary is to ballistic. 
B)  muscle spindle is to skeletal muscle. 
C)  voluntary is to reflex. 
D)  dynamic is to static. 
E)  CNS is to PNS. 
A)  voluntary is to ballistic. 
B)  muscle spindle is to skeletal muscle. 
C)  voluntary is to reflex. 
D)  dynamic is to static. 
E)  CNS is to PNS.

Question 3

Muscle spindles provide the CNS with information about muscle

Accepted Answer

A)  fatigue. 
B)  length. 
C)  tension. 
D)  color. 
E)  location. 
A)  fatigue. 
B)  length. 
C)  tension. 
D)  color. 
E)  location.

Question 4

In contrast to the axons of the descending dorsolateral motor pathways, individual axons of the ventromedial pathways often terminate

Accepted Answer

A)  directly on motor neurons. 
B)  in two or more segments. 
C)  on both sides of the spinal cord. 
D)  both A and B 
E)  both B and C 
A)  directly on motor neurons. 
B)  in two or more segments. 
C)  on both sides of the spinal cord. 
D)  both A and B 
E)  both B and C

Question 5

The only movements that are not greatly influenced by sensory feedback are __________ movements.

Accepted Answer

The answer of The only movements that are not greatly...

Question 6

Discuss the anatomy, circuitry, and function of muscle spindles. Use diagrams of the muscle spindle feedback circuit in your answer.

Accepted Answer

20% for describing the anatomy

Question 7

In contrast to the ventromedial corticospinal tract, before descending to the spinal cord, the ventromedial cortico-brainstem-spinal tract interacts with the

Accepted Answer

A)  tectum. 
B)  reticular formation. 
C)  vestibular nuclei. 
D)  all of the above 
E)  none of the above 
A)  tectum. 
B)  reticular formation. 
C)  vestibular nuclei. 
D)  all of the above 
E)  none of the above

Question 8

Bob tried to open a jar of pickles, but the lid did not budge. The muscles of his hands and arms were

Accepted Answer

A)  in isometric contraction. 
B)  in dynamic contraction. 
C)  locked in a stretch reflex. 
D)  in motor pools. 
E)  in extension. 
A)  in isometric contraction. 
B)  in dynamic contraction. 
C)  locked in a stretch reflex. 
D)  in motor pools. 
E)  in extension.

Question 9

In general the various areas of secondary motor cortex are thought to

Accepted Answer

A)  terminate response sequences. 
B)  specialize in guiding learned sequences. 
C)  program specific patterns of movement. 
D)  mediate reflexes. 
E)  provide the major input to spinal motor circuits. 
A)  terminate response sequences. 
B)  specialize in guiding learned sequences. 
C)  program specific patterns of movement. 
D)  mediate reflexes. 
E)  provide the major input to spinal motor circuits.

Question 10

Which kinds of movements are not influenced by sensory feedback?

Accepted Answer

A)  innate movements 
B)  unpracticed movements 
C)  practiced movements 
D)  ballistic movements 
E)  reflexive movements 
A)  innate movements 
B)  unpracticed movements 
C)  practiced movements 
D)  ballistic movements 
E)  reflexive movements

Question 11

The particularly large pyramidal neurons of primary motor cortex are known as __________ cells.

Accepted Answer

The answer of The particularly large pyramidal neurons of primary...

Question 12

Discuss the two effects of damage to the posterior parietal cortex.

Accepted Answer

20% for identifying apraxia
20

Question 13

An important point made by Fentress's study of grooming movements in forelimbless mice was that

Accepted Answer

A)  the complex species-common grooming movements of mice are not learned. 
B)  feedback is an important component of the central sensorimotor program for mouse grooming. 
C)  feedback is necessary to shape paw movements but not to shape those of the proximal limbs. 
D)  species-common grooming movements must be learned. 
E)  both A and B 
A)  the complex species-common grooming movements of mice are not learned. 
B)  feedback is an important component of the central sensorimotor program for mouse grooming. 
C)  feedback is necessary to shape paw movements but not to shape those of the proximal limbs. 
D)  species-common grooming movements must be learned. 
E)  both A and B

Question 14

The latency of withdrawal reflexes indicates that they involve

Accepted Answer

A)  no synapses. 
B)  at least 1 synapse. 
C)  at least 2 synapses. 
D)  at least 3 synapses. 
E)  more than 3 synapses. 
A)  no synapses. 
B)  at least 1 synapse. 
C)  at least 2 synapses. 
D)  at least 3 synapses. 
E)  more than 3 synapses.

Question 15

The axons of Betz cells are part of the

Accepted Answer

A)  dorsolateral corticospinal tract. 
B)  dorsolateral corticorubrospinal tract. 
C)  anterolateral pathway. 
D)  ventromedial cortico-brainstem-spinal tract. 
E)  ventromedial corticospinal tract. 
A)  dorsolateral corticospinal tract. 
B)  dorsolateral corticorubrospinal tract. 
C)  anterolateral pathway. 
D)  ventromedial cortico-brainstem-spinal tract. 
E)  ventromedial corticospinal tract.

Question 16

The biceps and triceps are

Accepted Answer

A)  synergistic. 
B)  dynamic. 
C)  isometric. 
D)  extensors. 
E)  antagonistic. 
A)  synergistic. 
B)  dynamic. 
C)  isometric. 
D)  extensors. 
E)  antagonistic.

Question 17

Illustrated here is a

Accepted Answer

A)  patellar tendon reflex. 
B)  withdrawal reflex. 
C)  stretch reflex. 
D)  both A and B 
E)  both A and C 
A)  patellar tendon reflex. 
B)  withdrawal reflex. 
C)  stretch reflex. 
D)  both A and B 
E)  both A and C

Question 18

Only primates and a few other species, such as hamsters and raccoons, have cortical neurons that synapse directly on

Accepted Answer

A)  muscles. 
B)  muscles of the fingers and thumb. 
C)  motor neurons that project to the muscles of the fingers and thumb. 
D)  spinal interneurons. 
E)  targets in the PNS. 
A)  muscles. 
B)  muscles of the fingers and thumb. 
C)  motor neurons that project to the muscles of the fingers and thumb. 
D)  spinal interneurons. 
E)  targets in the PNS.

Question 19

A deficit in the ability to recognize objects by touch is called

Accepted Answer

A)  apraxia. 
B)  asomatognosia. 
C)  stereognosis. 
D)  astereognosia. 
E)  homunculus. 
A)  apraxia. 
B)  asomatognosia. 
C)  stereognosis. 
D)  astereognosia. 
E)  homunculus.

So-called fast muscle fibers

Intrafusal is to extrafusal as

Muscle spindles provide the CNS with information about muscle

In contrast to the axons of the descending dorsolateral motor pathways, individual axons of the ventromedial pathways often terminate

The only movements that are not greatly influenced by sensory feedback are __________ movements.

Discuss the anatomy, circuitry, and function of muscle spindles. Use diagrams of the muscle spindle feedback circuit in your answer.

In contrast to the ventromedial corticospinal tract, before descending to the spinal cord, the ventromedial cortico-brainstem-spinal tract interacts with the

Bob tried to open a jar of pickles, but the lid did not budge. The muscles of his hands and arms were

In general the various areas of secondary motor cortex are thought to

Which kinds of movements are not influenced by sensory feedback?

The particularly large pyramidal neurons of primary motor cortex are known as __________ cells.

Discuss the two effects of damage to the posterior parietal cortex.

An important point made by Fentress's study of grooming movements in forelimbless mice was that

The latency of withdrawal reflexes indicates that they involve

The axons of Betz cells are part of the

The biceps and triceps are

Illustrated here is a

Only primates and a few other species, such as hamsters and raccoons, have cortical neurons that synapse directly on

A deficit in the ability to recognize objects by touch is called

Biopsychology as a Neuroscience: What is Biopsychology, Anyway?

Evolution, Genetics, and Experience: Thinking About the Biology of Behavior

The Anatomy of the Nervous System

Neural Conduction and Synaptic Transmission

The Research Methods of Biopsychology

The Visual System

Mechanisms of Perception

Development of the Nervous System

Brain Damage and Neuroplasticity

Learning, Memory, and Amnesia

Hunger, Eating, and Health

Hormones and Sex

Sleep, Dreaming, and Circadian Rhythms

Drug Addiction and the Brain’s Reward Circuits

Lateralization, Language, and the Split Brain

Biopsychology of Emotion, Stress, and Health

Biopsychology of Psychiatric Disorders

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Exam 8: The Sensorimotor System

So-called fast muscle fibers

Intrafusal is to extrafusal as

Muscle spindles provide the CNS with information about muscle

In contrast to the axons of the descending dorsolateral motor pathways, individual axons of the ventromedial pathways often terminate

The only movements that are not greatly influenced by sensory feedback are __________ movements.

Discuss the anatomy, circuitry, and function of muscle spindles. Use diagrams of the muscle spindle feedback circuit in your answer.

In contrast to the ventromedial corticospinal tract, before descending to the spinal cord, the ventromedial cortico-brainstem-spinal tract interacts with the

Bob tried to open a jar of pickles, but the lid did not budge. The muscles of his hands and arms were

In general the various areas of secondary motor cortex are thought to

Which kinds of movements are not influenced by sensory feedback?

The particularly large pyramidal neurons of primary motor cortex are known as __________ cells.

Discuss the two effects of damage to the posterior parietal cortex.

An important point made by Fentress's study of grooming movements in forelimbless mice was that

The latency of withdrawal reflexes indicates that they involve

The axons of Betz cells are part of the

The biceps and triceps are

Illustrated here is a

Only primates and a few other species, such as hamsters and raccoons, have cortical neurons that synapse directly on

A deficit in the ability to recognize objects by touch is called

Biopsychology as a Neuroscience: What is Biopsychology, Anyway?

Evolution, Genetics, and Experience: Thinking About the Biology of Behavior

The Anatomy of the Nervous System

Neural Conduction and Synaptic Transmission

The Research Methods of Biopsychology

The Visual System

Mechanisms of Perception

Development of the Nervous System

Brain Damage and Neuroplasticity

Learning, Memory, and Amnesia

Hunger, Eating, and Health

Hormones and Sex

Sleep, Dreaming, and Circadian Rhythms

Drug Addiction and the Brain’s Reward Circuits

Lateralization, Language, and the Split Brain

Biopsychology of Emotion, Stress, and Health

Biopsychology of Psychiatric Disorders

Filters