Question 1

When we bend a joint,flexors relax while extensors contract.

Accepted Answer

A) True 
 B)False

Question 2

In which of the following locations would we expect to find the greatest density of muscle spindles?​

Accepted Answer

A) the legs 
B) the torso 
C) the hands 
D) the arms 
A) the legs 
B) the torso 
C) the hands 
D) the arms

Question 3

Genetic abnormalities are probably most directly responsible for

Accepted Answer

A) muscular dystrophy and Huntington's disease. 
B)  polio and muscular dystrophy.​ 
C)  Huntington's disease and polio.​ 
D)  tetanus and polio.​ 
A) muscular dystrophy and Huntington's disease. 
B)  polio and muscular dystrophy.​ 
C)  Huntington's disease and polio.​ 
D)  tetanus and polio.​

Question 4

The proportion of fast and slow-twitch fibers found in an individual's quadriceps muscle is primarily determined by the​

Accepted Answer

A) individual's diet. 
B) number of hours the individual spends each week engaged in anaerobic activity, like weightlifting. 
C) the number of ACTN3 genes that person has 
D) number of hours the individual spends each week engaged in aerobic activity, like running or cycling. 
A) individual's diet. 
B) number of hours the individual spends each week engaged in anaerobic activity, like weightlifting. 
C) the number of ACTN3 genes that person has 
D) number of hours the individual spends each week engaged in aerobic activity, like running or cycling.

Question 5

Describe the movement of muscles as we bend an arm at the elbow.

Accepted Answer

Muscles at a joint like the el

Question 6

Where should we look to find Ia sensory fibers?​

Accepted Answer

A) at the neuromuscular junction where they are forming synapses with muscle fibers 
B) wrapped around the middle sections of muscle spindle fibers 
C) in the junctions between muscles and tendons 
D) in joints and in the skin 
A) at the neuromuscular junction where they are forming synapses with muscle fibers 
B) wrapped around the middle sections of muscle spindle fibers 
C) in the junctions between muscles and tendons 
D) in joints and in the skin

Question 7

The sequencing of complex movements is managed by the

Accepted Answer

A) basal ganglia. 
B)  red nucleus.​ 
C) cerebellum. 
D) reticular formation. 
A) basal ganglia. 
B)  red nucleus.​ 
C) cerebellum. 
D) reticular formation.

Question 8

The arrival of an action potential in a muscle fiber causes​

Accepted Answer

A) calcium to enter the muscle fiber. 
B) calcium to be released by internal organelles. 
C) acetylcholine to enter the muscle fiber. 
D) acetylcholine to be released by internal organelles. 
A) calcium to enter the muscle fiber. 
B) calcium to be released by internal organelles. 
C) acetylcholine to enter the muscle fiber. 
D) acetylcholine to be released by internal organelles.

Question 9

Golgi tendon organs send information to the spinal cord through Ia sensory fibers.

Accepted Answer

A) True 
 B)False

Question 10

While typing on your keyboard,you are especially dependent on which of the following motor pathways?

Accepted Answer

A) the tectospinal tract 
B)  the vestibulospinal tract​ 
C) the lateral pathway 
D) the ventromedial pathway 
A) the tectospinal tract 
B)  the vestibulospinal tract​ 
C) the lateral pathway 
D) the ventromedial pathway

Question 11

Describe current hypotheses regarding the causes of Parkinson's disease.

Accepted Answer

The answer of Describe current hypotheses regarding the causes of...

Question 12

Single-cell recordings during movement indicate that

Accepted Answer

A) movements are encoded by single neurons. 
B)  movements are encoded by populations of neurons.​ 
C)  it is not possible to identify correlations between neural activity and movements.​ 
D)  neural activity during movement appears surprisingly random.​ 
A) movements are encoded by single neurons. 
B)  movements are encoded by populations of neurons.​ 
C)  it is not possible to identify correlations between neural activity and movements.​ 
D)  neural activity during movement appears surprisingly random.​

Question 13

According to PET scans,which of the following areas are the first to show activity when a voluntary movement is initiated?

Accepted Answer

A) the occipital and temporal lobes 
B) the parietal and frontal lobes 
C) the supplementary motor area and the premotor area 
D) the premotor area and the parietal lobes 
A) the occipital and temporal lobes 
B) the parietal and frontal lobes 
C) the supplementary motor area and the premotor area 
D) the premotor area and the parietal lobes

Question 14

Describe the sequence of events in the nervous system that occurs as we initiate a voluntary movement.

Accepted Answer

The sequence of events in the nervous sy

Question 15

The premotor cortex and SMA converge on very large cells located in _________ of primary motor cortex.

Accepted Answer

A) pyramidal cells in Layer III. 
B) pyramidal cells in Layer V 
C) Purkinje cells in Layer III 
D) Purkinje cells in Layer V 
A) pyramidal cells in Layer III. 
B) pyramidal cells in Layer V 
C) Purkinje cells in Layer III 
D) Purkinje cells in Layer V

Question 16

Isaac observed a sample of motor units in which single neurons innervated fibers of the same type.This led Isaac to conclude that​

Accepted Answer

A) neural input probably determines the identity of muscle fibers as slow or fast-twitch. 
B) the organism that supplied the samples had probably suffered a spinal cord injury. 
C) the organism that supplied the samples was very old. 
D) his sample was not representative, and he needed to obtain more samples before reaching a conclusion. 
A) neural input probably determines the identity of muscle fibers as slow or fast-twitch. 
B) the organism that supplied the samples had probably suffered a spinal cord injury. 
C) the organism that supplied the samples was very old. 
D) his sample was not representative, and he needed to obtain more samples before reaching a conclusion.

Question 17

Ventromedial pathways provide

Accepted Answer

A) automatic control of the hands, feet, and parts of limbs farther from the body. 
B) automatic control of the neck, torso, and parts of limbs close to the body. 
C) voluntary control of the hands, feet, and the medial sections of limbs. 
D) voluntary control of the neck and torso. 
A) automatic control of the hands, feet, and parts of limbs farther from the body. 
B) automatic control of the neck, torso, and parts of limbs close to the body. 
C) voluntary control of the hands, feet, and the medial sections of limbs. 
D) voluntary control of the neck and torso.

Question 18

Traditional therapy for Parkinson's disease often includes

Accepted Answer

A) medication to inhibit dopamine production. 
B)  medication to stimulate dopamine production.​ 
C)  gene replacement therapy.​ 
D)  caspase inhibitors.​ 
A) medication to inhibit dopamine production. 
B)  medication to stimulate dopamine production.​ 
C)  gene replacement therapy.​ 
D)  caspase inhibitors.​

Question 19

Recruitment proceeds in a way that ensures that the​

Accepted Answer

A) least amount of energy and force possible will be used to do a job. 
B) greatest amount of energy and force possible will be used to do a job. 
C) fastest fibers will be recruited first to produce optimum reaction time. 
D) fibers with the greatest oxygen requirements will be used only when absolutely necessary for survival. 
A) least amount of energy and force possible will be used to do a job. 
B) greatest amount of energy and force possible will be used to do a job. 
C) fastest fibers will be recruited first to produce optimum reaction time. 
D) fibers with the greatest oxygen requirements will be used only when absolutely necessary for survival.

Question 20

Muscle fibers contract when Z lines move _________ and the sarcomeres _________.​

Accepted Answer

A) farther apart; stretch 
B) farther apart; shorten 
C) closer together; stretch 
D) closer together; shorten 
A) farther apart; stretch 
B) farther apart; shorten 
C) closer together; stretch 
D) closer together; shorten

When we bend a joint,flexors relax while extensors contract.

In which of the following locations would we expect to find the greatest density of muscle spindles?

Genetic abnormalities are probably most directly responsible for

The proportion of fast and slow-twitch fibers found in an individual's quadriceps muscle is primarily determined by the

Describe the movement of muscles as we bend an arm at the elbow.

Where should we look to find Ia sensory fibers?

The sequencing of complex movements is managed by the

The arrival of an action potential in a muscle fiber causes

Golgi tendon organs send information to the spinal cord through Ia sensory fibers.

While typing on your keyboard,you are especially dependent on which of the following motor pathways?

Describe current hypotheses regarding the causes of Parkinson's disease.

Single-cell recordings during movement indicate that

According to PET scans,which of the following areas are the first to show activity when a voluntary movement is initiated?

Describe the sequence of events in the nervous system that occurs as we initiate a voluntary movement.

The premotor cortex and SMA converge on very large cells located in _________ of primary motor cortex.

Isaac observed a sample of motor units in which single neurons innervated fibers of the same type.This led Isaac to conclude that

Ventromedial pathways provide

Traditional therapy for Parkinson's disease often includes

Recruitment proceeds in a way that ensures that the

Muscle fibers contract when Z lines move _ and the sarcomeres _.

What Is Behavioral Neuroscience

Functional Neuroanatomy and the Evolution of the Nervous System

Neurophysiology: the Structure and Functions of the Cells of the Nervous System

Psychopharmacology

Genetics and the Development of the Human Brain

Vision

Nonvisual Sensation and Perception

Homeostasis and Motivation

Sexual Behavior

Sleep and Waking

Learning and Memory

Hemispheric Asymmetry, language, and Intelligence

Emotion, reward, aggression, and Stress

Neuropsychology

Psychopathology

Filters

Exam 8: Movement

When we bend a joint,flexors relax while extensors contract.

In which of the following locations would we expect to find the greatest density of muscle spindles?​

Genetic abnormalities are probably most directly responsible for

The proportion of fast and slow-twitch fibers found in an individual's quadriceps muscle is primarily determined by the​

Describe the movement of muscles as we bend an arm at the elbow.

Where should we look to find Ia sensory fibers?​

The sequencing of complex movements is managed by the

The arrival of an action potential in a muscle fiber causes​

Golgi tendon organs send information to the spinal cord through Ia sensory fibers.

While typing on your keyboard,you are especially dependent on which of the following motor pathways?

Describe current hypotheses regarding the causes of Parkinson's disease.

Single-cell recordings during movement indicate that

According to PET scans,which of the following areas are the first to show activity when a voluntary movement is initiated?

Describe the sequence of events in the nervous system that occurs as we initiate a voluntary movement.

The premotor cortex and SMA converge on very large cells located in _________ of primary motor cortex.

Isaac observed a sample of motor units in which single neurons innervated fibers of the same type.This led Isaac to conclude that​

Ventromedial pathways provide

Traditional therapy for Parkinson's disease often includes

Recruitment proceeds in a way that ensures that the​

Muscle fibers contract when Z lines move _________ and the sarcomeres _________.​

What Is Behavioral Neuroscience

Functional Neuroanatomy and the Evolution of the Nervous System

Neurophysiology: the Structure and Functions of the Cells of the Nervous System

Psychopharmacology

Genetics and the Development of the Human Brain

Vision

Nonvisual Sensation and Perception

Homeostasis and Motivation

Sexual Behavior

Sleep and Waking

Learning and Memory

Hemispheric Asymmetry, language, and Intelligence

Emotion, reward, aggression, and Stress

Neuropsychology

Psychopathology

Filters

In which of the following locations would we expect to find the greatest density of muscle spindles?

The proportion of fast and slow-twitch fibers found in an individual's quadriceps muscle is primarily determined by the

Where should we look to find Ia sensory fibers?

The arrival of an action potential in a muscle fiber causes

Isaac observed a sample of motor units in which single neurons innervated fibers of the same type.This led Isaac to conclude that

Recruitment proceeds in a way that ensures that the

Muscle fibers contract when Z lines move _ and the sarcomeres _.