Question 1

Tendons attach muscles to bones.

Accepted Answer

A) True 
 B)False

Question 2

Submaximal isometric contractions are important for

Accepted Answer

A)   moving large objects.
B)   walking.
C)   maintaining posture.
D)   writing.
E)   none of these answers.

Question 3

Oxidative phosphorylation occurs within the mitochondria of muscle cells.

Accepted Answer

A) True 
 B)False

Question 4

Sequence the following events involved in muscle cell contraction

Accepted Answer

A)   1, 2, 3, 4, 5
B)   2, 1, 3, 4, 5
C)   2, 4, 3, 1, 5
D)   3, 4, 5, 1, 2
E)   3, 5, 2, 1, 4

Question 5

Match muscle type with correct characteristics.
-single unit smooth muscle

Accepted Answer

A)  voluntary, neurogenic, and striated
B)  voluntary, neurogenic, and nonstriated
C)  involuntary, myogenic, and striated
D)  involuntary, neurogenic and nonstriated
E)  involuntary, myogenic, and nonstriated

Question 6

Summation events result from increasing amounts of cytoplasmic calcium levels.

Accepted Answer

A) True 
 B)False

Question 7

Indicate which of the characteristics in question apply to each of the muscle fiber types by using the following answer code (more than one answer may apply) :
-Has myosin ATPase activity.

Accepted Answer

A)  slow-oxidative fiber
B)  fast-oxidative fiber
C)  fast-glycolytic fiber

Question 8

Indicate the characteristics of the muscle-tension receptors using the following answer code:
-Provides information to motor regions of the brain.

Accepted Answer

A)  muscle spindle
B)  Golgi tendon organ
C)  both of these receptors

Question 9

A motor unit is a single muscle plus all of the motor neurons that innervate it.

Accepted Answer

A) True 
 B)False

Question 10

A motor unit refers to

Accepted Answer

A)   a single motor neuron plus all of the muscle fibers it innervates.
B)   a single muscle fiber plus all of the motor neurons that innervate it.
C)   all of the motor neurons supplying a single muscle.
D)   a pair of antagonistic muscles.
E)   a sheet of smooth muscle cells connected by gap junctions.

Question 11

Indicate which type of muscle is associated with the property in question by writing the appropriate letter in the blank using the answer code below:
-Displays pacemaker potentials and slow-wave potentials.

Accepted Answer

A)  skeletal muscle only
B)  single-unit smooth muscle only
C)  cardiac muscle only
D)  skeletal muscle and cardiac muscle
E)  skeletal muscle and single-unit smooth muscleF) single-unit smooth muscle and cardiac muscleG) skeletal, single-unit smooth, and cardiac muscles

Question 12

MATCHING
Indicate which of the muscle proteins in skeletal muscle is associated with the item in question by writing the appropriate letters in the blanks using the answer code below:
-Can bind with myosin during muscle contraction.

Accepted Answer

A)  actin only
B)  myosin only
C)  actin and myosin
D)  troponin-tropomyosin complex
E)  actin, troponin, and tropomyosinF) actin, myosin, troponin, and tropomyosin

Question 13

Calcium that enters the cell during smooth muscle excitation binds with

Accepted Answer

A)   calmodulin.
B)   inactive myosin kinase.
C)   troponin.
D)   myosin.
E)   actin.

Question 14

MATCHING: ART
  
The following questions relate to accompanying figure of the three types of muscle tissue. Use the figure to help match the following characteristics with the correct muscle type.
-Involuntary

Accepted Answer

A)  Skeletal muscle only
B)  Cardiac muscle only
C)  Smooth muscle only
D)  Skeletal and Cardiac muscle
E)  Cardiac and Smooth muscleF) All three muscle types

Question 15

Indicate which of the characteristics in question apply to each of the muscle fiber types by using the following answer code (more than one answer may apply) :
-Produces the most lactic acid.

Accepted Answer

A)  slow-oxidative fiber
B)  fast-oxidative fiber
C)  fast-glycolytic fiber

Question 16

Myosin

Accepted Answer

A)   is found in the A band.
B)   is found in the I band.
C)   is the primary protein found in the thin filaments.
D)   contracts during muscle contraction because it is one of the contractile proteins.
E)   none of these answers.

Question 17

Smooth muscle is grouped into two categories, _____ and _______.

Accepted Answer

multiunit,...

Question 18

Indicate the characteristics of the muscle-tension receptors using the following answer code:
-Coactivation by gamma motor neurons

Accepted Answer

A)  muscle spindle
B)  Golgi tendon organ
C)  both of these receptors

Question 19

Match sarcomere component with correct characteristic.
-Joins adjacent sarcomeres together.

Accepted Answer

A)  Z line
B)  A band
C)  I band
D)  H zone

Question 20

At Io, a muscle is maximally stretched so that it can develop the most tension upon contraction, because the thin filaments can slide in a maximal distance.

Accepted Answer

A) True 
 B)False

Exam 8: Muscle Physiology

Summation events result from increasing amounts of cytoplasmic calcium levels.

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Match muscle type with correct characteristics. -single unit smooth muscle

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Calcium that enters the cell during smooth muscle excitation binds with

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A motor unit is a single muscle plus all of the motor neurons that innervate it.

Correct AnswerverifiedShow Answer

Myosin

Correct AnswerverifiedShow Answer

Tendons attach muscles to bones.

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Indicate which type of muscle is associated with the property in question by writing the appropriate letter in the blank using the answer code below: -Displays pacemaker potentials and slow-wave potentials.

Correct AnswerverifiedShow Answer

Indicate which of the characteristics in question apply to each of the muscle fiber types by using the following answer code (more than one answer may apply) : -Has myosin ATPase activity.

Correct AnswerverifiedShow Answer

Indicate the characteristics of the muscle-tension receptors using the following answer code: -Coactivation by gamma motor neurons

Correct AnswerverifiedShow Answer

At Io, a muscle is maximally stretched so that it can develop the most tension upon contraction, because the thin filaments can slide in a maximal distance.

Correct AnswerverifiedShow Answer

Match sarcomere component with correct characteristic. -Joins adjacent sarcomeres together.

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MATCHING: ART The following questions relate to accompanying figure of the three types of muscle tissue. Use the figure to help match the following characteristics with the correct muscle type. -Involuntary

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Sequence the following events involved in muscle cell contraction

Correct AnswerverifiedShow Answer

Submaximal isometric contractions are important for

Correct AnswerverifiedShow Answer

Smooth muscle is grouped into two categories, _____ and _______.

Correct Answerverifiedmultiunit,...View AnswerShow Answer

MATCHING Indicate which of the muscle proteins in skeletal muscle is associated with the item in question by writing the appropriate letters in the blanks using the answer code below: -Can bind with myosin during muscle contraction.

Correct AnswerverifiedShow Answer

Indicate the characteristics of the muscle-tension receptors using the following answer code: -Provides information to motor regions of the brain.

Correct AnswerverifiedShow Answer

A motor unit refers to

Correct AnswerverifiedShow Answer

Oxidative phosphorylation occurs within the mitochondria of muscle cells.

Correct AnswerverifiedShow Answer

Indicate which of the characteristics in question apply to each of the muscle fiber types by using the following answer code (more than one answer may apply) : -Produces the most lactic acid.

Correct AnswerverifiedShow Answer

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Smooth muscle is grouped into two categories, _ and ___.

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multiunit,...
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