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THE HUMAN BODY AND ILLNESS BOOK: CH 9 MUSCULAR SYSTEM QUIZ

Total questions: 102

Worksheet time: 51mins

Name
Class
Date
1.

CHAPTER 9 MUSCULAR SYSTEM:

Which of the following muscles is described as striated and involuntary?

a)

Aponeurosis

b)

Smooth

c)

Skeletal

d)

Cardiac

2.

Actin is

a)

located within the neuromuscular junction.

b)

a contractile protein that is part of the thin filament.

c)

called the thick filament.

d)

stored within the sarcoplasmic reticulum.

3.

Which of the following forms cross-bridges with actin?

a)

Sarcoplasmic reticulum

b)

T tubules

c)

Myosin

d)

Sarcolemma

4.

“Pumping iron” is most likely to cause

a)

atrophy.

b)

contracture formation.

c)

hypertrophy.

d)

muscular dystrophy.

5.

The orbicularis oris muscle

a)

surrounds the mouth.

b)

flexes the head.

c)

is the smiling muscle.

d)

closes the eye.

6.

Which of the following is not a facial muscle?

a)

Orbicularis oculi

b)

Zygomaticus

c)

Sternocleidomastoid

d)

Frontalis

7.

Which muscle is located on the posterior area of the body?

a)

Latissimus dorsi

b)

Pectoralis major

c)

Quadriceps femoris

d)

Sternocleidomastoid

8.

Which group of muscles is located on the posterior thigh?

a)

Rotator cuff muscles

b)

Quadriceps femoris

c)

Hamstrings

d)

Muscles of mastication

9.

The biceps femoris, semitendinosus, and semimembranosus

a)

flex the foot.

b)

attach to the patella.

c)

are the hamstrings.

d)

are located on the anterior thigh.

10.

The rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius

a)

insert on the calcaneus.

b)

flex the leg at the knee.

c)

are antagonistic to the quadriceps femoris.

d)

are the muscles of the quadriceps femoris.

11.

The quadriceps femoris group and the hamstrings

a)

lie along the anterior part of the leg.

b)

flex the foot.

c)

lie along the thigh.

d)

shrug the shoulders.

12.

Which flat muscle covers the forehead and raises the eyebrows (for a “surprised” look)?

a)

Frontalis

b)

Zygomaticus

c)

Masseter

d)

Buccinator

13.

The levator palpebrae superioris

a)

purses the lips.

b)

allows one to whistle.

c)

raises the eyelids.

d)

wiggles the nose.

14.

The smiling muscle is the

a)

buccinator.

b)

zygomaticus.

c)

frontalis.

d)

orbicularis oris.

15.

Which muscles are located between the ribs and help move the rib cage during breathing?

a)

Diaphragm

b)

Sternocleidomastoid

c)

Serratus anterior

d)

Intercostal muscles

16.

Which muscle is located in the lower extremities?

a)

Peroneus longus

b)

Latissimus dorsi

c)

Serratus anterior

d)

Pectoralis major

17.

Which group of muscles moves the arm at the shoulder?

a)

Quadriceps femoris group

b)

Hamstrings

c)

Rotator cuff muscles

d)

Muscles of mastication

18.

The brachialis and brachioradialis

a)

flex the forearm at the elbow.

b)

extend the hand.

c)

are antagonistic to the biceps brachii.

d)

shrug the shoulders.

19.

Which large muscle or muscle group extends the thigh at the hip?

a)

Sartorius

b)

Hamstring

c)

Rotator cuff

d)

Latissimus dorsi

20.

Which muscle attaches to the cranial aponeurosis and wrinkles the forehead?

a)

Frontalis

b)

Buccinator

c)

Orbicularis oculi

d)

Platysma

21.

“Make like a scarecrow” by contracting which muscle?

a)

Frontalis

b)

Trapezius

c)

Latissimus dorsi

d)

Deltoid

22.

Which muscle lies along the anterior surface of the humerus and acts synergistically with the brachialis and brachioradialis to flex the forearm at the elbow?

a)

Deltoid

b)

Triceps brachii

c)

Biceps brachii

d)

Latissimus dorsi

23.

The gastrocnemius and the soleus are commonly called the

a)

swimmer’s muscles.

b)

toe dancer’s muscles.

c)

rotator cuff muscles.

d)

trumpeter’s muscles.

24.

What is the name of the cord of connective tissue that connects muscle to bone?

a)

Ligament

b)

Tendon

c)

Linea alba

d)

Aponeurosis

25.

Which of the following is a series of contractile units that make up each myofibril (each unit extends from Z line to Z line)?

a)

Sarcomeres

b)

Synapses

c)

Fascicles

d)

Sarcoplasmic reticulum

26.

Which structure is an extension of the sarcolemma or cell membrane, which penetrates the interior of the muscle and carries the electrical signal to the deepest part of the muscle?

a)

Sarcoplasmic reticulum

b)

T tubule

c)

Z line

d)

Tendon

27.

The sarcoplasmic reticulum

a)

stores ACh.

b)

is located within the neuromuscular junction.

c)

envelops the sarcomere-containing myofibrils.

d)

is a contractile protein.

28.

What is the site of calcium storage in a relaxed skeletal muscle?

a)

T tubule

b)

Neuromuscular junction

c)

Fascicle

d)

Sarcoplasmic reticulum

29.

Acetylcholine is released from the neuron’s membrane in response to the

a)

nerve impulse.

b)

binding of the myosin heads to actin.

c)

release of calcium from the sarcoplasmic reticulum.

d)

inactivation of acetylcholinesterase.

30.

Which of the following is responsible for muscle relaxation?

a)

The sarcomere runs out of ATP.

b)

Calcium floods the area of the sarcomere, allowing for the interaction of actin and myosin.

c)

Calcium is pumped back into the sarcoplasmic reticulum.

d)

Acetylcholinesterase in the neuromuscular junction is depleted.

31.

Which of the following describes a muscle that remains in a contracted state?

a)

Twitch

b)

Tetany

c)

Atrophy

d)

Hypertrophy

32.

Joey has had his leg in a non–weight-bearing cast for 8 weeks. When the cast is removed, the diameter of the leg appears smaller than the uninjured leg. Which term best describes this observation?

a)

Contracture

b)

Hypertrophy

c)

Muscle dystrophy

d)

Disuse atrophy

33.

Which muscle covers the shoulder like a shoulder pad?

a)

Deltoid

b)

Trapezius

c)

Biceps brachii

d)

Sternocleidomastoid

34.

Which of the following “muscle words” refers to the chest?

a)

Rectus

b)

Latissimus

c)

Vastus

d)

Pectoralis

35.

Which muscle is located in the upper back and posterior neck region (contraction of this muscle causes you to look up at the sky)?

a)

Pectoralis major

b)

Sternocleidomastoid

c)

Trapezius

d)

Diaphragm

36.

Which muscle separates the thoracic and abdominal cavities and is also the chief breathing muscle?

a)

Serratus anterior

b)

Intercostal muscle

c)

Sternocleidomastoid

d)

Diaphragm

37.

Which muscle are you using as you turn your head down and to the left and then to the right?

a)

Sternocleidomastoid

b)

Frontalis

c)

Pectoralis major

d)

Diaphragm

38.

Which muscles are located on the inner (medial) surface of the thigh and move the thigh toward the midline of the body?

a)

Gastrocnemius

b)

Quadriceps femoris

c)

Adductors

d)

Sartorius

39.

Where is the vastus lateralis located?

a)

Arm

b)

Thigh

c)

Chest

d)

Back

40.

What is the function of the masseter muscle?

a)

Adducts the thigh

b)

Chews food

c)

Lifts the eyelid

d)

Flexes the forearm at the elbow

41.

The Achilles tendon attaches the soleus and which muscle to the calcaneus?

a)

Sartorius

b)

Quadriceps femoris

c)

Gastrocnemius

d)

Vastus lateralis

42.

On which large muscle do you sit?

a)

Latissimus dorsi

b)

Gastrocnemius

c)

Gluteus maximus

d)

Rectus femoris

43.

The rectus, transversus, internal oblique, and external oblique refer to

a)

smooth muscles.

b)

abdominal muscles.

c)

breathing muscles.

d)

muscles that are located on the back and work synergistically with the latissimus dorsi.

44.

Which muscle lies along the posterior surface of the arm and extends the forearm and is used to bear weight in crutch walking?

a)

Biceps brachii

b)

Biceps femoris

c)

Deltoid

d)

Triceps brachii

45.

Which of the following increases the force of contraction of a whole muscle?

a)

Twitch

b)

Contracture

c)

Ossification

d)

Recruitment

46.

The force of muscle contraction is most related to the

a)

amount of calcium that is stored within the sarcoplasmic reticulum.

b)

amount of neurotransmitter released from the prejunctional vesicles.

c)

numbers of cross-bridges formed between actin and myosin.

d)

size of the somatic motor neuron.

47.

With regard to skeletal muscle contraction, which event comes first?

a)

Cross-bridge formation between actin and myosin

b)

Release of calcium from the sarcoplasmic reticulum

c)

Activation of the NM receptor within the neuromuscular junction

d)

Release of neurotransmitter (ACh) from the somatic motor neuron

48.

With regard to skeletal muscle contraction, which event comes last?

a)

Shortening of the sarcomere

b)

Release of calcium from the sarcoplasmic reticulum

c)

Activation of the NM receptors by ACh

d)

Release of neurotransmitter (ACh) from the somatic motor neuron

49.

Which group is incorrect?

a)

Dysfunction at the neuromuscular junction: botulism, myasthenia gravis

b)

Contractile proteins: thin filaments, myosin, aponeurosis

c)

Terms that describe the muscle activity of a whole muscle: twitch, tetany

d)

Movements: flexion, supination, abduction

50.

Which group is incorrect?

a)

Types of striated muscle: skeletal, cardiac, smooth

b)

Movements: extension, pronation, adduction

c)

Movements: flexion, supination, abduction

d)

Muscles of the face: frontalis, buccinator, masseter

51.

Which group is incorrect?

a)

Muscles in the lower extremities: hamstrings, quadriceps, gastrocnemius

b)

Muscles involved in breathing: diaphragm, intercostals, hamstrings

c)

Terms that describe the muscle activity of a whole muscle: twitch, tetany

d)

Muscles in the upper extremities: triceps brachii, biceps brachii, pronators

52.

Which type of muscle requires stimulation by a somatic motor neuron?

a)

Visceral

b)

Smooth

c)

Cardiac

d)

Skeletal

53.

Which of the following 'slide' in the sliding filament hypothesis?

a)

Calcium and ATP

b)

Sarcoplasm and T tubules

c)

Actin and myosin

d)

Epimysium and perimysium

54.

Which of the following generates the force that causes the filaments to slide past each other?

a)

Binding of the acetylcholine to the NM receptor in the neuromuscular junction

b)

The interaction of acetylcholine and cholinesterase

c)

The rotation of the myosin head on the actin

d)

The pumping of calcium into the sarcoplasmic reticulum

55.

Which of the following describes actin and myosin?

a)

Considered contractile proteins

b)

Form force-generating cross-bridges

c)

Sliding filaments

d)

All of the above

56.

Muscle relaxation

a)

is a response to the binding of ACh to the receptor.

b)

occurs when calcium is pumped back into the sarcoplasmic reticulum.

c)

is a response to the inactivation of acetylcholinesterase by ACh.

d)

occurs when the tendons lengthen.

57.

As the electrical signal travels through the T tubules, it causes the

a)

release of calcium from the sarcoplasmic reticulum.

b)

release of the neurotransmitter ACh from the axon terminal in the neuromuscular junction.

c)

inactivation of the ACh within the neuromuscular junction.

d)

myosin heads to detach from the actin.

58.

The somatic motor nerve that supplies the muscles of the thigh has been severed; therefore, the person

a)

will be able to walk only if he or she receives IV calcium.

b)

cannot walk.

c)

can walk but has no feeling in the lower extremities.

d)

can stand but cannot walk.

59.

Recruitment increases the

a)

force of muscle contraction.

b)

amount of cholinesterase in the neuromuscular junction.

c)

number of motor units that are activated.

d)

Two of the above are true.

60.

Which of the following is an event that occurs within the neuromuscular junction?

a)

Sliding of actin and myosin

b)

Pumping of calcium back into the SR

c)

Binding of the acetylcholine to the nicotinic receptor on the muscle membrane

d)

Release of calcium from the sarcoplasmic reticulum

61.

Curare-induced muscle blockade at the NM receptors within the neuromuscular junction

a)

causes paralysis.

b)

induces tetanus.

c)

stimulates recruitment.

d)

causes loss of sensation with no effect on motor activity (muscle contraction).

62.

Contraction of the right sternocleidomastoid muscle

a)

acts antagonistically to the pectoralis major.

b)

acts synergistically with the trapezius.

c)

hyperextends the head.

d)

rotates the head down and to the left.

63.

Which of the following is true of the chewing muscles?

a)

Must be attached to the mandible

b)

Are smooth muscle

c)

Are called the muscles of deglutition

d)

Cannot tetanize

64.

The biceps brachii, brachioradialis, and brachialis muscles

a)

have their origin on the scapula.

b)

act synergistically with the triceps brachii.

c)

extend the forearm.

d)

flex the forearm at the elbow.

65.

Which of the following muscles is (are) located on the posterior body?

a)

Pectoralis major

b)

Latissimus dorsi

c)

Quadriceps femoris

d)

Rectus abdominis, transversus abdominis, internal oblique, external oblique

66.

Where are the pronators and supinators located?

a)

Thigh

b)

Abdomen

c)

Lower back

d)

Upper extremities

67.

A tendon

a)

is a series of sarcomeres.

b)

attaches muscle to bone.

c)

forms the Z line between each sarcomere.

d)

is also called an aponeurosis.

68.

Which of the following does not refer to the thin filament?

a)

Myosin binding site

b)

Troponin

c)

Tropomyosin

d)

Myosin

69.

The somatic motor neuron

a)

causes release of ACh into the NMJ.

b)

stimulates the SR to release calcium into the sarcomeres.

c)

moves the tropomyosin away from the myosin binding sites on actin.

d)

stimulates the axon terminal to release calcium into the NMJ.

70.

Clinically, an elevated blood level of creatine phosphate is indicative of

a)

calcium deficiency.

b)

muscle damage.

c)

flaccid paralysis.

d)

hypertrophy.

71.

A stronger force of muscle contraction develops when additional motor units are stimulated. This is called

a)

recruitment.

b)

atrophy.

c)

hypertrophy.

d)

myasthenia.

72.

The purpose of myoglobin is to

a)

store oxygen.

b)

sequester calcium.

c)

convert lactic acid to glucose.

d)

make the muscle red.

73.

An aponeurosis

a)

is flat, sheetlike fascia.

b)

is composed of connective tissue.

c)

forms a site of attachment for skeletal muscle.

d)

All of the above are true.

74.

Which of the following is composed of a series of sarcomeres?

a)

Myofibrils

b)

Aponeuroses

c)

Tendons

d)

Ligaments

75.

Which of the following activates the NM receptors within the neuromuscular junction?

a)

Acetylcholinesterase

b)

Calcium

c)

Troponin

d)

ACh

76.

Which of the following normally terminates muscle contraction?

a)

Depletion of ACh in the neuromuscular junction

b)

Binding of ACh to the NM receptors

c)

Pumping of calcium back into the sarcoplasmic reticulum

d)

Depletion of ATP within the sarcomere

77.

What is the stimulus for the release of ACh from the prejunctional membrane?

a)

Acetylcholinesterase

b)

Nerve action potential

c)

Release of calcium by the SR

d)

Muscle membrane electrical signal

78.

To which contractile protein does calcium bind?

a)

Troponin

b)

Tropomyosin

c)

Actin

d)

Thick filament

79.

How does curare paralyze a muscle?

a)

Depletes the sarcomere of calcium

b)

Blocks the prejunctional release of ACh

c)

Blocks the postjunctional NM receptors

d)

Degrades the cholinesterase within the NMJ

80.

Creatine phosphate provides the skeletal muscle with

a)

energy used to synthesize ATP.

b)

lactic acid.

c)

oxygen.

d)

myoglobin.

81.

Which of the following words means “muscle weakness”?

a)

Myoglobin

b)

Myopathy

c)

Myasthenia

d)

Atrophy

82.

Fascicles are

a)

muscle fibers bound together by connective tissue.

b)

ACh-filled vesicles.

c)

ATP-filled vesicles.

d)

contractile proteins.

83.

Acetylcholinesterase

a)

inactivates the NM receptors.

b)

is the stimulus for the release of calcium from the SR.

c)

degrades ACh.

d)

binds calcium, making it unavailable to the sarcomere.

84.

Which of the following is classified as disuse, denervation, and senile?

a)

Hypertrophy

b)

Recruitment

c)

Dystrophy

d)

Atrophy

85.

The muscles of mastication must insert on the

a)

maxilla.

b)

palatine bone.

c)

mandible.

d)

zygomatic bone.

86.

The orbicularis oculi

a)

encircles the eye.

b)

is the kissing muscle.

c)

purses the lips.

d)

lifts the eyelid.

87.

This muscle flattens the cheek and positions the food between the teeth.

a)

Masseter

b)

Temporalis

c)

Buccinator

d)

Zygomaticus

88.

Which of the following best describes a sphincter muscle?

a)

Oblique

b)

Encircle

c)

Straight

d)

Aponeurosis

89.

Which of the following is least related to the platysma?

a)

Pouting muscle

b)

Squinting

c)

Inserts on the mandible

d)

“Close your mouth,” says the dentist

90.

This muscle group has four muscles: two oblique, one rectus, and one transverse.

a)

Quadriceps femoris

b)

Hamstrings

c)

Adductors

d)

Abdominal

91.

This large anterior chest muscle inserts on the anterior humerus and has its origins on the clavicle, upper ribs, and sternum. It allows a person to point toward an object directly in front of him.

a)

Sternocleidomastoid

b)

Deltoid

c)

Erector spinae

d)

Pectoralis major

92.

This muscle group attaches to the linea alba.

a)

Hamstrings

b)

Adductors

c)

Abdominal

d)

Muscles of respiration

93.

The supinator and pronator muscles

a)

have their origin on the sternum and clavicle.

b)

act synergistically with the sternocleidomastoid muscles.

c)

are located in the lower extremities.

d)

change the position of the hand.

94.

Which of the following is least related to the rectus femoris?

a)

Quadriceps femoris

b)

Anterior thigh

c)

Flexion of thigh at hip

d)

Forms the popliteal fossa

95.

Which of the following is true of the hamstrings?

a)

Extension of the thigh

b)

Forms posterior fossa

c)

Biceps femoris

d)

All of the above

96.

This long muscle lies obliquely across the anterior thigh. It allows you to sit in a crossed-leg (lotus) position. It flexes the leg at the knee and abducts and laterally rotates the thigh at the hip.

a)

Hamstrings

b)

Quadriceps femoris

c)

Sartorius

d)

Gastrocnemius

97.

The calf muscle (gastrocnemius) attaches to the calcaneus by the

a)

Achilles tendon.

b)

soleus.

c)

quadriceps ligament.

d)

popliteal ligaments.

98.

The ___________________ inserts on the quadriceps ligament, causing extension of the leg at the knee.

a)

rectus femoris

b)

semimembranosus

c)

gastrocnemius

d)

sartorius

99.

If you are pointing directly behind you, your ___________________ is (are) contracting.

a)

hamstrings

b)

pectoralis major

c)

gluteal muscles

d)

latissimus dorsi

100.

The rotator cuff muscles

a)

stabilize the shoulder joint.

b)

include the biceps femoris, semitendinosus, and semimembranosus.

c)

attach the radius and ulna to the humerus.

d)

include the quadriceps femoris, vastus lateralis, and vastus medialis.

101.

The flexor carpi radialis and the flexor carpi ulnaris

a)

flex the forearm at the elbow.

b)

extend the forearm.

c)

flex the hand at the wrist.

d)

adduct the arm.

102.

Muscles that cause movement of the hip attach to both the

a)

femur and tibia.

b)

sacrum and coxal bone.

c)

coxal bone and femur.

d)

hip bone and the coxal bone.

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