Question 1

Which of the following muscles serves as a common intramuscular injection site,particularly in infants as the buttocks and arm muscles are poorly developed?

Accepted Answer

A)  the vastus lateralis
B)  the vastus medialis
C)  rectus femoris
D)  the vastus intermediusE) All of the above
F) B) and D)

Question 2

The ________ runs deep to the internal oblique.

Accepted Answer

A)  transversus abdominis
B)  external oblique
C)  latissimus dorsi
D)  rectus abdominisE) A) and B)
F) C) and D)

Question 3

The most powerful muscle in the body is the ________.

Accepted Answer

A)  gluteus maximus
B)  rectus abdominis
C)  gastrocnemius
D)  quadriceps femorisE) A) and B)
F) B) and C)

Question 4

Which of the following muscles inserts to the posterior calcaneus via the calcaneal tendon?

Accepted Answer

A)  the semitendinosus
B)  the tibialis anterior
C)  the gastrocnemius
D)  the sartoriusE) A) and C)
F) All of the above

Question 5

Which of the following muscles fixes and depresses the ribs and stabilizes the pelvis during walking?

Accepted Answer

A)  transversus abdominis
B)  internal oblique
C)  external oblique
D)  rectus abdominisE) A) and B)
F) All of the above

Question 6

The deltoid is a prime mover of the arm that acts in adduction.

Accepted Answer

A) True 
 B)False

Question 7

Muscles that help to maintain posture are best described as synergists.

Accepted Answer

A) True 
 B)False

Question 8

The ________ is known as the "boxer's muscle."

Accepted Answer

A)  flexor digitorum longus
B)  rectus abdominis
C)  serratus anterior
D)  biceps brachiiE) B) and D)
F) B) and C)

Question 9

How does an antagonist differ from a prime mover (agonist)? How is it the same?

Accepted Answer

A prime mover is the muscle that causes ...

Question 10

Deep muscles of the thorax promote movements for breathing.

Accepted Answer

A) True 
 B)False

Question 11

Which muscle(s) is (are) contracted to exhale forcibly?

Accepted Answer

A)  diaphragm alone
B)  external intercostals and diaphragm
C)  internal intercostals and rectus abdominus
D)  rectus abdominis and diaphragmE) All of the above
F) B) and C)

Question 12

A pair of tweezers is a good example of a second-class lever.

Accepted Answer

A) True 
 B)False

Question 13

The major head flexors are the sternocleidomastoid muscles,with the help of the muscles attached to the hyoid bone.

Accepted Answer

A) True 
 B)False

Question 14

Which of these is NOT a way of classifying muscles?

Accepted Answer

A)  muscle location
B)  muscle shape
C)  the type of muscle fibers
D)  the type of action they causeE) C) and D)
F) B) and D)

Question 15

Both first- and second-class levers operate at a mechanical disadvantage.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following muscles is a flexor of the thigh?

Accepted Answer

A)  vastus lateralis
B)  adductor magnus
C)  gluteus maximus
D)  tibialis posteriorE) A) and C)
F) A) and B)

Question 17

The ________ helps keep food between the grinding surfaces of the teeth during chewing.

Accepted Answer

A)  risorius
B)  orbicularis oris
C)  buccinator
D)  mentalisE) A) and C)
F) B) and C)

Question 18

The ________ is a synergist of the latissimus dorsi; it extends,medially rotates,and adducts the humerus.

Accepted Answer

A)  supraspinatus
B)  teres minor
C)  infraspinatus
D)  teres majorE) A) and D)
F) None of the above

Question 19

Regardless of type,all levers follow the same basic principle: effort farther than load from fulcrum = mechanical advantage; effort nearer than load to fulcrum = mechanical disadvantage.

Accepted Answer

A) True 
 B)False

Question 20

Which group of muscles elevates the first two ribs and flexes and rotates the neck?

Accepted Answer

A)  the spinalis
B)  the iliocostalis
C)  the scalenes
D)  the spleniusE) A) and C)
F) B) and C)

Exam 10: The Muscular System

Both first- and second-class levers operate at a mechanical disadvantage.

Correct AnswerverifiedShow Answer

Which of the following muscles serves as a common intramuscular injection site,particularly in infants as the buttocks and arm muscles are poorly developed?

Correct AnswerverifiedShow Answer

Which of these is NOT a way of classifying muscles?

Correct AnswerverifiedShow Answer

A pair of tweezers is a good example of a second-class lever.

Correct AnswerverifiedShow Answer

Muscles that help to maintain posture are best described as synergists.

Correct AnswerverifiedShow Answer

The ________ is known as the "boxer's muscle."

Correct AnswerverifiedShow Answer

Which group of muscles elevates the first two ribs and flexes and rotates the neck?

Correct AnswerverifiedShow Answer

The ________ runs deep to the internal oblique.

Correct AnswerverifiedShow Answer

How does an antagonist differ from a prime mover (agonist)? How is it the same?

Correct AnswerverifiedA prime mover is the muscle that causes ...View AnswerShow Answer

Deep muscles of the thorax promote movements for breathing.

Correct AnswerverifiedShow Answer

The ________ helps keep food between the grinding surfaces of the teeth during chewing.

Correct AnswerverifiedShow Answer

Which of the following muscles fixes and depresses the ribs and stabilizes the pelvis during walking?

Correct AnswerverifiedShow Answer

The major head flexors are the sternocleidomastoid muscles,with the help of the muscles attached to the hyoid bone.

Correct AnswerverifiedShow Answer

The ________ is a synergist of the latissimus dorsi; it extends,medially rotates,and adducts the humerus.

Correct AnswerverifiedShow Answer

The most powerful muscle in the body is the ________.

Correct AnswerverifiedShow Answer

Which of the following muscles is a flexor of the thigh?

Correct AnswerverifiedShow Answer

The deltoid is a prime mover of the arm that acts in adduction.

Correct AnswerverifiedShow Answer

Which muscle(s) is (are) contracted to exhale forcibly?

Correct AnswerverifiedShow Answer

Regardless of type,all levers follow the same basic principle: effort farther than load from fulcrum = mechanical advantage; effort nearer than load to fulcrum = mechanical disadvantage.

Correct AnswerverifiedShow Answer

Which of the following muscles inserts to the posterior calcaneus via the calcaneal tendon?

Correct AnswerverifiedShow Answer

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A prime mover is the muscle that causes ...
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