Question 1

Which muscle is a powerful agonist of adduction,medial rotation,and extension of the arm?

Accepted Answer

A)  latissimus dorsi
B)  deltoid
C)  pectoralis minor
D)  brachialisE) None of the above
F) B) and C)

Question 2

In the human body,what is the fulcrum in a lever system?

Accepted Answer

A)  The fulcrum is the angle of the movement.
B)  The fulcrum is the effort generated by muscle contractions.
C)  The fulcrum is the weight of the body part being moved.
D)  The fulcrum is the joint at which movement occurs.E) B) and D)
F) C) and D)

Question 3

Which of the following extends the forearm?

Accepted Answer

A)  triceps brachii
B)  brachioradialis
C)  biceps brachii
D)  brachialisE) All of the above
F) A) and B)

Question 4

Which of the following muscles is named using a directional term?

Accepted Answer

A)  orbicularis oris
B)  adductor longus
C)  vastus lateralis
D)  gastrocnemiusE) C) and D)
F) B) and C)

Question 5

Explain the meaning of the muscle name extensor carpi ulnaris.

Accepted Answer

The term extensor indicates this muscle ...

Question 6

Standing on tiptoes is an example of a:

Accepted Answer

A)  first-class lever system.
B)  second-class lever system.
C)  third-class lever system.
D)  lever system demonstrating mechanical disadvantage.E) A) and B)
F) B) and C)

Question 7

The external urinary sphincter provides involuntary control of urination.

Accepted Answer

A) True 
 B)False

Question 8

Identify the lateral rectus muscle.

Accepted Answer

A)  A
B)  B
C)  C
D)  DE) C) and D)
F) B) and C)

Question 9

Which muscle elevates the scapula?

Accepted Answer

A)  serratus anterior
B)  pectoralis minor
C)  levator scapulae
D)  rhomboid majorE) A) and B)
F) A) and C)

Question 10

Identify the rectus abdominis muscle.

Accepted Answer

A)  A
B)  B
C)  C
D)  DE) C) and D)
F) All of the above

Question 11

What joint serves as the fulcrum when triceps brachii moves the forearm?

Accepted Answer

A)  wrist joint
B)  shoulder joint
C)  metacarpals joint
D)  elbow jointE) A) and C)
F) C) and D)

Question 12

What is the action of flexor carpi ulnaris?

Accepted Answer

A)  flex the index finger
B)  flex the hand
C)  flex the little finger
D)  flex the thumbE) All of the above
F) A) and C)

Question 13

During abdominal surgery,the surgeon makes a cut lateral to the linea alba.Discuss the location of the linea alba,the muscle that has been cut,and any impairment to mobility the patient may experience.

Accepted Answer

The linea alba is a line of connective t...

Question 14

A football player sustained an injury to his hamstring group.What muscles belong to the hamstring group and what would be the effect of the injury on this group?

Accepted Answer

The hamstring group consists of the bice...

Question 15

Unipennate muscles have fascicles that wrap around a bone or have a twisted appearance.

Accepted Answer

A) True 
 B)False

Question 16

Identify the corrugator supercilii muscle.

Accepted Answer

A)  A
B)  B
C)  C
D)  DE) A) and B)
F) A) and D)

Question 17

Which of the following muscles is named for its shape?

Accepted Answer

A)  levator scapulae
B)  vastus medialis
C)  pronator quadratus
D)  triceps brachiiE) A) and D)
F) B) and C)

Question 18

A first-class lever has the fulcrum situated farther from the point of the applied force,with the load to be moved in between.

Accepted Answer

A) True 
 B)False

Question 19

Explain how synergists and antagonists balance the action of the agonist.

Accepted Answer

An agonist,or prime mover,provides most ...

Question 20

Which of the following muscles extends the leg at the knee joint?

Accepted Answer

A)  rectus femoris
B)  adductor magnus
C)  sartorius
D)  gracilisE) A) and D)
F) C) and D)

Exam 9: The Muscular System

Which of the following muscles is named for its shape?

Correct AnswerverifiedShow Answer

Identify the lateral rectus muscle.

Correct AnswerverifiedShow Answer

Standing on tiptoes is an example of a:

Correct AnswerverifiedShow Answer

Explain how synergists and antagonists balance the action of the agonist.

Correct AnswerverifiedAn agonist,or prime mover,provides most ...View AnswerShow Answer

Which of the following extends the forearm?

Correct AnswerverifiedShow Answer

What joint serves as the fulcrum when triceps brachii moves the forearm?

Correct AnswerverifiedShow Answer

In the human body,what is the fulcrum in a lever system?

Correct AnswerverifiedShow Answer

Unipennate muscles have fascicles that wrap around a bone or have a twisted appearance.

Correct AnswerverifiedShow Answer

A football player sustained an injury to his hamstring group.What muscles belong to the hamstring group and what would be the effect of the injury on this group?

Correct AnswerverifiedThe hamstring group consists of the bice...View AnswerShow Answer

Which of the following muscles is named using a directional term?

Correct AnswerverifiedShow Answer

Explain the meaning of the muscle name extensor carpi ulnaris.

Correct AnswerverifiedThe term extensor indicates this muscle ...View AnswerShow Answer

Identify the corrugator supercilii muscle.

Correct AnswerverifiedShow Answer

The external urinary sphincter provides involuntary control of urination.

Correct AnswerverifiedShow Answer

What is the action of flexor carpi ulnaris?

Correct AnswerverifiedShow Answer

A first-class lever has the fulcrum situated farther from the point of the applied force,with the load to be moved in between.

Correct AnswerverifiedShow Answer

Which muscle is a powerful agonist of adduction,medial rotation,and extension of the arm?

Correct AnswerverifiedShow Answer

Which muscle elevates the scapula?

Correct AnswerverifiedShow Answer

Identify the rectus abdominis muscle.

Correct AnswerverifiedShow Answer

During abdominal surgery,the surgeon makes a cut lateral to the linea alba.Discuss the location of the linea alba,the muscle that has been cut,and any impairment to mobility the patient may experience.

Correct AnswerverifiedThe linea alba is a line of connective t...View AnswerShow Answer

Which of the following muscles extends the leg at the knee joint?

Correct AnswerverifiedShow Answer

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An agonist,or prime mover,provides most ...
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Correct Answer
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The hamstring group consists of the bice...
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The term extensor indicates this muscle ...
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The linea alba is a line of connective t...
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Correct Answer
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