Question 1

The skeletal muscles store calcium ions in the

Accepted Answer

A)   sarcolemma.
B)   sarcomere.
C)   sarcosome.
D)   sarcoplasmic reticulum.
E)   sarcoplasm.

Question 2

At the neuromuscular junction, the muscle fiber membrane is folded to form a

Accepted Answer

A)   motor end plate.
B)   motor unit.
C)   neuroreceptor.
D)   neurotransmitter.
E)   motor neuron.

Question 3

The term used to describe muscular growth in response to usage is

Accepted Answer

A)   multiple sclerosis.
B)   muscular dystrophy.
C)   atrophy.
D)   hypertrophy.
E)   myopathy.

Question 4

The tropomyosin molecules are attached to

Accepted Answer

A)   actin molecules.
B)   myosin molecules.
C)   troponin molecules.
D)   ATP molecules.
E)   calcium ions.

Question 5

Increasing the frequency of stimulation so that a muscle contracts without relaxation is called

Accepted Answer

A)   tetany.
B)   a twitch.
C)   relaxation.
D)   recovery.
E)   recruitment.

Question 6

The muscle that inserts on the superior surface of the pubis around the symphysis is the

Accepted Answer

A)   internal oblique.
B)   external oblique.
C)   rectus abdominis.
D)   transversus abdominis.
E)   diaphragm.

Question 7

Muscles comprising the quadriceps group include the

Accepted Answer

A)   rectus femoris, vastus intermedius, vastus lateralis, and vastus medialis.
B)   rectus femoris, tibialis anterior, soleus, and adductor longus.
C)   peroneus, gastrocnemius, vastus intermedius, and rectus femoris.
D)   iliopsoas, gracilis, adductor magnus, biceps femoris, and gracilis.
E)   semitendinosus, biceps femoris, rectus femoris, and vastus medialis.

Question 8

The muscle that inserts on the superior angle of the scapula is the

Accepted Answer

A)   serratus anterior.
B)   trapezius.
C)   sternocleidomastoid.
D)   pectoralis minor.
E)   levator scapulae.

Question 9

Newborns are most likely to develop which muscles most quickly?

Accepted Answer

A)   the masseter and buccinator
B)   the buccinator and orbicularis oris
C)   the orbicularis oris and risorius
D)   the risorius and zygomaticus
E)   the levator labii and mentalis

Question 10

The muscle directly deep to the gastrocnemius is the

Accepted Answer

A)   peroneus.
B)   extensor digitorum.
C)   soleus.
D)   tibialis posterior.
E)   tibialis anterior.

Question 11

Rigor mortis that occurs in skeletal muscles a few hours after death is due to

Accepted Answer

A)   excessive ATP and decreased permeability to calcium.
B)   decreased ATP and increased permeability to calcium.
C)   excessive ATP.
D)   lack of oxygen.
E)   lactic acid buildup.

Question 12

Nonstriated, involuntary muscle is

Accepted Answer

A)   cardiac.
B)   red skeletal.
C)   smooth.
D)   white skeletal.
E)   intermediate skeletal.

Question 13

Which of the following terms is a descriptive word for a muscle's size?

Accepted Answer

A)   levator
B)   extensor
C)   tensor
D)   longissimus
E)   adductor

Question 14

The minor abductor of the upper arm that works as a synergist is the

Accepted Answer

A)   supraspinatus.
B)   subscapularis.
C)   deltoid.
D)   biceps brachii.
E)   teres major.

Question 15

Myofibrils are made primarily of

Accepted Answer

A)   actin and myosin.
B)   epimysium.
C)   ATP and ADP.
D)   troponin.
E)   tropomyosin.

Exam 7: The Muscular System

The tropomyosin molecules are attached to

Correct Answer
verified

The skeletal muscles store calcium ions in the

Correct Answer
verified

At the neuromuscular junction, the muscle fiber membrane is folded to form a

Correct Answer
verified

Nonstriated, involuntary muscle is

Correct Answer
verified

Rigor mortis that occurs in skeletal muscles a few hours after death is due to

Correct Answer
verified

Myofibrils are made primarily of

Correct Answer
verified

The muscle that inserts on the superior angle of the scapula is the

Correct Answer
verified

The minor abductor of the upper arm that works as a synergist is the

Correct Answer
verified

The term used to describe muscular growth in response to usage is

Correct Answer
verified

The muscle that inserts on the superior surface of the pubis around the symphysis is the

Correct Answer
verified

Muscles comprising the quadriceps group include the

Correct Answer
verified

Newborns are most likely to develop which muscles most quickly?

Correct Answer
verified

Which of the following terms is a descriptive word for a muscle's size?

Correct Answer
verified

The muscle directly deep to the gastrocnemius is the

Correct Answer
verified

Increasing the frequency of stimulation so that a muscle contracts without relaxation is called

Correct Answer
verified

Exam 7: The Muscular System

The tropomyosin molecules are attached to

Correct AnswerverifiedShow Answer

The skeletal muscles store calcium ions in the

Correct AnswerverifiedShow Answer

At the neuromuscular junction, the muscle fiber membrane is folded to form a

Correct AnswerverifiedShow Answer

Nonstriated, involuntary muscle is

Correct AnswerverifiedShow Answer

Rigor mortis that occurs in skeletal muscles a few hours after death is due to

Correct AnswerverifiedShow Answer

Myofibrils are made primarily of

Correct AnswerverifiedShow Answer

The muscle that inserts on the superior angle of the scapula is the

Correct AnswerverifiedShow Answer

The minor abductor of the upper arm that works as a synergist is the

Correct AnswerverifiedShow Answer

The term used to describe muscular growth in response to usage is

Correct AnswerverifiedShow Answer

The muscle that inserts on the superior surface of the pubis around the symphysis is the

Correct AnswerverifiedShow Answer

Muscles comprising the quadriceps group include the

Correct AnswerverifiedShow Answer

Newborns are most likely to develop which muscles most quickly?

Correct AnswerverifiedShow Answer

Which of the following terms is a descriptive word for a muscle's size?

Correct AnswerverifiedShow Answer

The muscle directly deep to the gastrocnemius is the

Correct AnswerverifiedShow Answer

Increasing the frequency of stimulation so that a muscle contracts without relaxation is called

Correct AnswerverifiedShow Answer

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