When a person blinks, she is using her
A. occipitofrontalis muscle.
B. orbicularis oris.
C. procerus.
D. orbicularis oculi.
E. depressor labii inferioris.
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Question 2) The rhomboid muscle is named for its
A. size.
B. origin.
C. fiber orientation.
D. shape.
E. action.
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Question 3) Two features that are used in the naming of muscles are tissue color and fiber size.
Indicate whether this statement is true or false.
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Question 4) A muscle whose action opposes that of the prime mover is known as a(n)
A. agonist.
B. antagonist.
C. synergist.
D. extensor.
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Question 5) Muscles that assist an agonist in performing a movement are known as synergists.
Indicate whether this statement is true or false.
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Question 6) For elbow flexion,
A. biceps brachii is the agonist and triceps brachii is the antagonist.
B. biceps brachii is the antagonist and triceps brachii is the agonist.
C. triceps brachii is the synergist and biceps brachii is the antagonist.
D. deltoid is the agonist and biceps brachii is the synergist.
E. biceps brachii is the synergist and triceps brachii is the agonist.
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Question 7) In the limbs, which tends to be a muscle's more distal attachment?
A. The aponeurosis
B. The insertion
C. The origin
D. The perimysium
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Question 8) Some muscles are named according to the orientation of their fibers.
Indicate whether this statement is true or false.
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Question 9) The _________ of a muscle is its less movable attachment.
Fill in the blank with correct word.
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Question 10) Muscles whose fascicles are arranged in a pattern that resembles a feather are referred to as __________ muscles.
Fill in the blank with correct word.
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