Question 1

What lever class has the fulcrum situated between the force and the load?

Accepted Answer

A)   fourth -class lever
B)   first -class lever
C)   third -class lever
D)   second -class leverE) C) and D)
F) B) and C)

Question 2

Which muscle abducts the thigh, medially rotates the thigh, and stabilizes the pelvis during walking?

Accepted Answer

A)   gluteus minimus
B)   obturator externus
C)   semimembranosus
D)   biceps femorisE) A) and D)
F) C) and D)

Question 3

When climbing stairs, which muscles plantar flex your foot?

Accepted Answer

A)   rectus femoris and sartorius
B)   tibialis anterior and extensor digitorum longus
C)   gluteus maximus and hamstrings
D)   gastrocnemius and soleusE) All of the above
F) A) and B)

Question 4

Which group is an antagonist to the hamstrings group?

Accepted Answer

A)   gluteal muscle group
B)   adductor muscle group
C)   quadriceps femoris group
D)   iliopsoas muscle groupE) C) and D)
F) B) and C)

Question 5

John experienced a cut that severs the tendon that attaches the insertion of the gastrocnemius muscle. As a result of this injury, what action is difficult for him to perform?

Accepted Answer

A)   eversion of the foot
B)   plantar flexion
C)   inversion of the foot
D)   dorsiflexionE) A) and C)
F) All of the above B

Question 6

The soleus is a synergist of the gastrocnemius during plantar flexion.

Accepted Answer

A) True 
 B)False

Question 7

List and summarize the five patterns of fascicles seen in skeletal muscles.

Accepted Answer

The five fascicle patterns are parallel,...

Question 8

Which muscle adducts the fingers?

Accepted Answer

A)   palmar interossei
B)   dorsal interossei
C)   extensor indicis
D)   flexor pollicis longusE) C) and D)
F) A) and B)

Question 9

During a baseball game, Eddie experienced a rotator cuff injury that benched him for the rest of the season. Eddie's doctor said he would be sitting out to let the SITS
muscles heal. What four muscles did his doctor reference?

Accepted Answer

The rotator cuff consists of four muscle...

Question 10

Which muscle assists with the erection of the penis and clitoris?

Accepted Answer

A)   bulbospongiosus
B)   superficial transverse perineal
C)   pubococcygeus
D)   levator aniE) None of the above
F) C) and D)

Question 11

Each of the following muscles acts to flex the leg, EXCEPT:

Accepted Answer

A)   vastus lateralis.
B)   gracilis.
C)   semitendinosus.
D)   sartorius.E) B) and D)
F) A) and B)

Question 12

Which of the following muscles is NOT associated with the mouth?

Accepted Answer

A)   depressor labii inferioris
B)   depressor anguli oris
C)   orbicularis oculi
D)   orbicularis orisE) All of the above
F) None of the above

Question 13

Damage to the pectoralis major would interfere with a person's ability to:

Accepted Answer

A)   adduct the humerus.
B)   abduct the humerus.
C)   extend the forearm.
D)   elevate the scapula.E) None of the above
F) All of the above

Question 14

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

Accepted Answer

A)   elbow joint
B)   shoulder joint
C)   metacarpals joint
D)   wrist jointE) None of the above
F) C) and D)

Question 15

Tennis elbow is a misnomer for a condition caused by changes in the tendon that
attaches the extensor carpi radialis brevis to bone. Discuss the origin and action of this muscle.

Accepted Answer

Extensor carpi radialis brevis...

Question 16

Standing on tiptoes is an example of a:

Accepted Answer

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

Question 17

Medial rotation of the eyeball is performed by the:

Accepted Answer

A)   inferior rectus muscle.
B)   superior rectus muscle.
C)   medial rectus muscle.
D)   inferior oblique muscle.E) A) and B)
F) All of the above

Question 18

How do most circular muscles function?

Accepted Answer

A)   swallowing
B)   levers
C)   sphincters
D)   breathingE) None of the above
F) A) and C) C

Question 19

List at least three muscles that contribute to smiling.

Accepted Answer

Zygomaticus major an...

Question 20

The union of the muscles of the quadriceps femoris group forms the quadriceps tendon, which continues on to form the patellar ligament.

Accepted Answer

A) True 
 B)False  True

Exam 9: The Muscular System

What lever class has the fulcrum situated between the force and the load?

Correct AnswerverifiedShow Answer

Which muscle abducts the thigh, medially rotates the thigh, and stabilizes the pelvis during walking?

Correct AnswerverifiedShow Answer

When climbing stairs, which muscles plantar flex your foot?

Correct AnswerverifiedShow Answer

Which group is an antagonist to the hamstrings group?

Correct AnswerverifiedShow Answer

John experienced a cut that severs the tendon that attaches the insertion of the gastrocnemius muscle. As a result of this injury, what action is difficult for him to perform?

Correct AnswerverifiedB

The soleus is a synergist of the gastrocnemius during plantar flexion.

Correct AnswerverifiedShow Answer

List and summarize the five patterns of fascicles seen in skeletal muscles.

Correct AnswerverifiedThe five fascicle patterns are parallel,...View AnswerShow Answer

Which muscle adducts the fingers?

Correct AnswerverifiedShow Answer

During a baseball game, Eddie experienced a rotator cuff injury that benched him for the rest of the season. Eddie's doctor said he would be sitting out to let the SITS muscles heal. What four muscles did his doctor reference?

Correct AnswerverifiedThe rotator cuff consists of four muscle...View AnswerShow Answer

Which muscle assists with the erection of the penis and clitoris?

Correct AnswerverifiedShow Answer

Each of the following muscles acts to flex the leg, EXCEPT:

Correct AnswerverifiedShow Answer

Which of the following muscles is NOT associated with the mouth?

Correct AnswerverifiedShow Answer

Damage to the pectoralis major would interfere with a person's ability to:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Tennis elbow is a misnomer for a condition caused by changes in the tendon that attaches the extensor carpi radialis brevis to bone. Discuss the origin and action of this muscle.

Correct AnswerverifiedExtensor carpi radialis brevis...View AnswerShow Answer

Standing on tiptoes is an example of a:

Correct AnswerverifiedShow Answer

Medial rotation of the eyeball is performed by the:

Correct AnswerverifiedShow Answer

How do most circular muscles function?

Correct AnswerverifiedC

List at least three muscles that contribute to smiling.

Correct AnswerverifiedZygomaticus major an...View AnswerShow Answer

The union of the muscles of the quadriceps femoris group forms the quadriceps tendon, which continues on to form the patellar ligament.

Correct AnswerverifiedTrue

Correct Answer
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B

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The five fascicle patterns are parallel,...
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The rotator cuff consists of four muscle...
View Answer

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Extensor carpi radialis brevis...
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C

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Zygomaticus major an...
View Answer

Correct Answer
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True