Question 1

Describe how the reticular formation regulates muscle tonus.

Accepted Answer

The reticular formation controls the act

Question 2

2- The ________ cortex is involved in the decision to make a movement.

Accepted Answer

The answer of 2- The ________ cortex is involved in...

Question 3

A key function of low-sensitivity afferents from the Golgi tendon organ is to

Accepted Answer

A)  increase the firing rate of the gamma motor system. 
B)  increase the amount of acetylcholine released into the motor synapse. 
C)  prevent the risk of tearing a tendon from a bone or breaking a bone. 
D)  decrease the amount of glycine released onto alpha motor neurons in the spinal cord. 
E)  decrease the amount of acetylcholine released into the motor synapse. 
A)  increase the firing rate of the gamma motor system. 
B)  increase the amount of acetylcholine released into the motor synapse. 
C)  prevent the risk of tearing a tendon from a bone or breaking a bone. 
D)  decrease the amount of glycine released onto alpha motor neurons in the spinal cord. 
E)  decrease the amount of acetylcholine released into the motor synapse.

Question 4

Damage involving the ________ tract would be expected to impair your ability to grasp and manipulate objects with your fingers.

Accepted Answer

A)  lateral corticospinal 
B)  vestibulospinal 
C)  tectospinal 
D)  reticulospinal 
E)  premotor-striatal 
A)  lateral corticospinal 
B)  vestibulospinal 
C)  tectospinal 
D)  reticulospinal 
E)  premotor-striatal

Question 5

Contrast the symptoms and etiology of Huntington's disease with that of Parkinson's disease.

Accepted Answer

Huntington's disease (HD) is caused by d

Question 6

Apraxia is characterized by

Accepted Answer

A)  motor paralysis. 
B)  an impairment in learning a new motor skill. 
C)  muscle weakness. 
D)  the inability to properly carry out a learned, skilled movement. 
E)  an impairment in motor coordination. 
A)  motor paralysis. 
B)  an impairment in learning a new motor skill. 
C)  muscle weakness. 
D)  the inability to properly carry out a learned, skilled movement. 
E)  an impairment in motor coordination.

Question 7

The functional significance of the Golgi tendon organs is to

Accepted Answer

A)  allow us to lift heavy loads. 
B)  reduce muscle relaxation. 
C)  maintain muscle tone. 
D)  simultaneously contract flexor and extensor muscles. 
E)  prevent the tearing of muscle fibers from a tendon. 
A)  allow us to lift heavy loads. 
B)  reduce muscle relaxation. 
C)  maintain muscle tone. 
D)  simultaneously contract flexor and extensor muscles. 
E)  prevent the tearing of muscle fibers from a tendon.

Question 8

The ________ is formed by the synapse of an efferent nerve terminal onto a muscle fiber.

Accepted Answer

A)  myofibril tangle 
B)  motor unit 
C)  neuromuscular junction 
D)  intrafusal contact 
E)  muscle spindle 
A)  myofibril tangle 
B)  motor unit 
C)  neuromuscular junction 
D)  intrafusal contact 
E)  muscle spindle

Question 9

A person with constructional apraxia would be expected to have difficulty in

Accepted Answer

A)  showing how to use an object such as a toothbrush. 
B)  making skilled movements with arms and hands. 
C)  building a puzzle from blocks. 
D)  describing in words how to use an object. 
E)  using his or her left limb to make a skilled movement. 
A)  showing how to use an object such as a toothbrush. 
B)  making skilled movements with arms and hands. 
C)  building a puzzle from blocks. 
D)  describing in words how to use an object. 
E)  using his or her left limb to make a skilled movement.

Question 10

Parkinson's disease is characterized by

Accepted Answer

A)  impaired ability to follow a map. 
B)  sudden involuntary movements. 
C)  slowness of movement. 
D)  an inability to perform a sequence of movements. 
E)  a gene mutation on chromosome 4. 
A)  impaired ability to follow a map. 
B)  sudden involuntary movements. 
C)  slowness of movement. 
D)  an inability to perform a sequence of movements. 
E)  a gene mutation on chromosome 4.

Question 11

The presence of dark stripes in skeletal muscles is due to

Accepted Answer

A)  the presence of blood vessels within the muscle fibers. 
B)  thickened membranes at the neuromuscular junctions. 
C)  variations in myelin coating of the muscle fibers. 
D)  overlapping segments of actin and myosin filaments. 
E)  alternating motor units. 
A)  the presence of blood vessels within the muscle fibers. 
B)  thickened membranes at the neuromuscular junctions. 
C)  variations in myelin coating of the muscle fibers. 
D)  overlapping segments of actin and myosin filaments. 
E)  alternating motor units.

Question 12

Name and describe the three motor tracts that comprise the lateral group of descending fibers and explain their relative functions in motor control.

Accepted Answer

Motor neurons arising from the primary m

Question 13

The sensitivity of the muscle spindle fiber is controlled by input from

Accepted Answer

A)  Golgi tendon organs. 
B)  gamma motor neurons. 
C)  myofibrils. 
D)  alpha motoneurons. 
E)  striated muscle fibers. 
A)  Golgi tendon organs. 
B)  gamma motor neurons. 
C)  myofibrils. 
D)  alpha motoneurons. 
E)  striated muscle fibers.

Question 14

Damage involving the ________ tract would be expected to impair walking as well as automatic functions such as breathing and sneezing.

Accepted Answer

A)  lateral corticospinal 
B)  corticoospinal 
C)  tectospinal 
D)  reticulospinal 
E)  premotor-striatal 
A)  lateral corticospinal 
B)  corticoospinal 
C)  tectospinal 
D)  reticulospinal 
E)  premotor-striatal

Question 15

Another name for ________ muscle is striated muscle.

Accepted Answer

The answer of Another name for ________ muscle is striated...

Question 16

Damage to the flocculonodular lobe of the cerebellum would be expected to impair

Accepted Answer

A)  muscle contractions. 
B)  postural reflexes. 
C)  composition of movements. 
D)  timing of ballistic movements. 
E)  planning of movements. 
A)  muscle contractions. 
B)  postural reflexes. 
C)  composition of movements. 
D)  timing of ballistic movements. 
E)  planning of movements.

Question 17

The results of cortical stimulation studies indicate that a disproportionate amount of motor cortex is devoted to the control of movements of the

Accepted Answer

A)  fingers. 
B)  lips and tongue. 
C)  genitals. 
D)  stomach. 
E)  arms and legs. 
A)  fingers. 
B)  lips and tongue. 
C)  genitals. 
D)  stomach. 
E)  arms and legs.

Question 18

A ________ consists of the extrafusal fibers innervated by a single alpha motor neuron.

Accepted Answer

A)  myofibril tangle 
B)  motor unit 
C)  extrafusal junction 
D)  intrafusal contact 
E)  muscle spindle 
A)  myofibril tangle 
B)  motor unit 
C)  extrafusal junction 
D)  intrafusal contact 
E)  muscle spindle

Question 19

Imaging studies indicate strong activation of the pre-SMA region during

Accepted Answer

A)  random hand movements. 
B)  performance of a learned sequence of button presses. 
C)  movement of the eyes. 
D)  planning of motor movements. 
E)  scanning a screen for visual cues. 
A)  random hand movements. 
B)  performance of a learned sequence of button presses. 
C)  movement of the eyes. 
D)  planning of motor movements. 
E)  scanning a screen for visual cues.

Question 20

________ is a spatial representation of the specific cortical areas that control specific body movements.

Accepted Answer

A)  motor homunculus 
B)  choreogram 
C)  somatogram 
D)  corticotopic map 
E)  audiogram 
A)  motor homunculus 
B)  choreogram 
C)  somatogram 
D)  corticotopic map 
E)  audiogram

Describe how the reticular formation regulates muscle tonus.

2- The ________ cortex is involved in the decision to make a movement.

A key function of low-sensitivity afferents from the Golgi tendon organ is to

Damage involving the ________ tract would be expected to impair your ability to grasp and manipulate objects with your fingers.

Contrast the symptoms and etiology of Huntington's disease with that of Parkinson's disease.

Apraxia is characterized by

The functional significance of the Golgi tendon organs is to

The ________ is formed by the synapse of an efferent nerve terminal onto a muscle fiber.

A person with constructional apraxia would be expected to have difficulty in

Parkinson's disease is characterized by

The presence of dark stripes in skeletal muscles is due to

Name and describe the three motor tracts that comprise the lateral group of descending fibers and explain their relative functions in motor control.

The sensitivity of the muscle spindle fiber is controlled by input from

Damage involving the ________ tract would be expected to impair walking as well as automatic functions such as breathing and sneezing.

Another name for ________ muscle is striated muscle.

Damage to the flocculonodular lobe of the cerebellum would be expected to impair

The results of cortical stimulation studies indicate that a disproportionate amount of motor cortex is devoted to the control of movements of the

A ________ consists of the extrafusal fibers innervated by a single alpha motor neuron.

Imaging studies indicate strong activation of the pre-SMA region during

________ is a spatial representation of the specific cortical areas that control specific body movements.

Introduction

Structure and Function of Cells of the Nervous System

Structure of the Nervous System

Psychopharmacology

Methods and Strategies of Research

Vision

Audition, the Body Senses, and the Chemical Senses

Sleep and Biological Rhythms

Reproductive Behavior

Emotion

Ingestive Behavior

Learning and Memory

Human Communication

Neurological Disorders

Schizophrenia and the Affective Disorders

Anxiety Disorders, Autistic Disorder, Attention-Deficithyperactivity Disorder, and Stress Disorders

Drug Abuse

Filters

Exam 8: Control of Movement

Describe how the reticular formation regulates muscle tonus.

2- The ________ cortex is involved in the decision to make a movement.

A key function of low-sensitivity afferents from the Golgi tendon organ is to

Damage involving the ________ tract would be expected to impair your ability to grasp and manipulate objects with your fingers.

Contrast the symptoms and etiology of Huntington's disease with that of Parkinson's disease.

Apraxia is characterized by

The functional significance of the Golgi tendon organs is to

The ________ is formed by the synapse of an efferent nerve terminal onto a muscle fiber.

A person with constructional apraxia would be expected to have difficulty in

Parkinson's disease is characterized by

The presence of dark stripes in skeletal muscles is due to

Name and describe the three motor tracts that comprise the lateral group of descending fibers and explain their relative functions in motor control.

The sensitivity of the muscle spindle fiber is controlled by input from

Damage involving the ________ tract would be expected to impair walking as well as automatic functions such as breathing and sneezing.

Another name for ________ muscle is striated muscle.

Damage to the flocculonodular lobe of the cerebellum would be expected to impair

The results of cortical stimulation studies indicate that a disproportionate amount of motor cortex is devoted to the control of movements of the

A ________ consists of the extrafusal fibers innervated by a single alpha motor neuron.

Imaging studies indicate strong activation of the pre-SMA region during

________ is a spatial representation of the specific cortical areas that control specific body movements.

Introduction

Structure and Function of Cells of the Nervous System

Structure of the Nervous System

Psychopharmacology

Methods and Strategies of Research

Vision

Audition, the Body Senses, and the Chemical Senses

Sleep and Biological Rhythms

Reproductive Behavior

Emotion

Ingestive Behavior

Learning and Memory

Human Communication

Neurological Disorders

Schizophrenia and the Affective Disorders

Anxiety Disorders, Autistic Disorder, Attention-Deficithyperactivity Disorder, and Stress Disorders

Drug Abuse

Filters