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Worksheets

Muscular System - Chapter Assessment

Total questions: 77

Worksheet time: 39mins

Name
Class
Date
1.

Which of the following types of muscle are found in the stomach or blood vessels?

a)

Cardiac

b)

Skeletal

c)

Visceral

d)

Striated

2.

A large broad sheet of connective tissue, such as on the abdomen, is called a/an _____ .

a)

Aponeurosis

b)

Epimysium

c)

Perimysium

d)

Endomysium

3.

The membrane that is the closest to the individual muscle fiber is the _____ .

a)

Aponeurosis

b)

Epimysium

c)

Perimysium

d)

Endomysium

4.

A group of skeletal muscle fibers is called a/an _____.

a)

Perimysium

b)

Fascicle

c)

Epimysium

d)

Tendon

5.

The structure that connects muscles to bones is the _____.

a)

Aponeurosis

b)

Fascicle

c)

Tendon

d)

Ligament

6.

The fibers of a muscle that are connected to the overlying skin fibers is the _____ .

a)

Subcutaneous fascia

b)

Deep fascia

c)

Subserous fascia

d)

Tendon

7.

The muscle cells within a group such as the biceps brachii are individually called _____ .

a)

Sarcolemmas

b)

Fibers

c)

Myocyte

d)

Myofibrils

8.

The fiber cell membrane is termed the _____ .

a)

Myofibril

b)

Myosin

c)

Myofilament

d)

Sarcolemma

9.

Which of the following does not belong with the others?

a)

Myofilament

b)

Myosin

c)

Myofibril

d)

Actin

10.

The smallest, functional unit of contraction is the _____.

a)

Fiber

b)

Sarcomere

c)

Filament

d)

Myofibril

11.

The I bands in a sarcomere are made of _____ .

a)

Myosin

b)

Actin and myosin

c)

Tropomyosin

d)

Actin

12.

The _____ zone contains only myosin and is in the center of a sarcomere.

a)

A

b)

I

c)

M

d)

H

13.

The cisternae are enlarged portions of the _____ .

a)

Sarcoplasmic reticulum

b)

Endoplasmic reticulum

c)

Transverse tubules

d)

T-tubules

14.

The gap between the muscle and a nerve is the _____.

a)

Synapse

b)

Motor end plate

c)

Myoneural junction

d)

Motor neuron

15.

The chemical that crosses a neuromuscular gap is _____.

a)

Sodium

b)

A protein

c)

A neurotransmitter

d)

Calcium

16.

The combination of a neuron and the muscle fiber it associates with is called a/an _____ .

a)

Fascicle

b)

Motor end plate

c)

Motor unit

d)

Myoneural junction

17.

The most abundant of the muscle proteins is _____ .

a)

Actin

b)

Troponin

c)

Myosin

d)

Tropomyosin

18.

The main force of contraction occurs when actin forms a chemical complex with _____ .

a)

Troponin

b)

Myosin

c)

Tropomyosin

d)

Acetylcholine

19.

When a muscle is at rest, which of the following is not associated chemically with the others?

a)

Actin

b)

Myosin

c)

Troponin

d)

Tropomyosin

20.

During the contraction of a sarcomere, calcium ions bind with the protein _____.

a)

Actin

b)

Myosin

c)

Troponin

d)

Tropomyosin

21.

The main neurotransmitter involved in skeletal muscle contraction is _____.

a)

Adrenaline

b)

Noradrenaline

c)

Acetylcholine

d)

Dopamine

22.

Which molecule directly supplies energy to myosin to allow the filaments to contract?

a)

Adenosine diphosphate (ADP)

b)

ATP

c)

Creatine phosphate

d)

Creatinine

23.

What is the most abundant storage form of energy within a muscle fiber?

a)

Glycogen

b)

ADP

c)

ATP

d)

Creatine phosphate

24.

What effect does creatine phosphokinase have an muscle activity?

a)

It causes a fiber to relax

b)

It stimulates ATP synthesis

c)

Catalyzes the formation of creatine phosphate

d)

Causes the breakdown of creatine into creatinine

25.

How is excess sugar stored within muscle fibers?

a)

in ATP

b)

Glycogen

c)

Glucose

d)

Creatinine

26.

Which main factor allows muscle to sustain contraction even during times when the blood supply is low?

a)

The presence of hemoglobin

b)

Glycogen storage

c)

Myoglobin

d)

Citric acid cycle

27.

The reddish brown color of muscle is due to the presence of _____ molecules.

a)

Creatine phosphate

b)

Hemoglobin

c)

Iron

d)

Myoglobin

28.

Which molecule is produced during exercise, resulting in the oxygen debt?

a)

Glycogen

b)

Lactate

c)

Pyruvate

d)

ATP

29.

Which of the following does not belong with the others?

a)

White muscles

b)

Fast-contracting

c)

Extensive sarcoplasmic reticulum

d)

Relatively large supply of myoglobin

30.

About _____% of ATP energy becomes liberated as heat from muscle metabolism.

a)

25

b)

50

c)

75

d)

10

31.

The minimum stimulus needed to cause a contraction is called the _____.

a)

All-or-none law

b)

Threshold

c)

Sub-maximal stimulus

d)

Recruitment level

32.

A single contraction of a muscle is called a ______.

a)

Threshold

b)

Recruitment

c)

Twitch

d)

Myogram

33.

The period of time between the stimulus and contraction is called the _____.

a)

Latent period

b)

Refractory period

c)

Contraction period

d)

Relaxation period

34.

The complete contraction of a muscle, without the ability to relax, is called _____.

a)

A sustained contraction

b)

Fatigue

c)

Tetanic contraction

d)

Treppe

35.

The constant contraction of a percentage of fibers within a muscle is referred to as _____.

a)

Tetany

b)

Tonus

c)

Sustained contraction

d)

Summation

36.

Contractions called _____ occur whenever the forces applied to a muscle are increased, but the muscle does not appear to be moving.

a)

Isotonic

b)

Isometric

c)

Tetanic

d)

Summation contractions

37.

Which of the following muscles always requires nerve impulses in order to contract?

a)

Multi-unit smooth

b)

Skeletal

c)

Visceral smooth

d)

Cardiac

38.

Which type of muscle is found in the wall of blood vessels?

a)

Skeletal

b)

Cardiac

c)

Smooth visceral

d)

Multi-unit smooth

39.

Since smooth muscle fibers have rhythmicity and can stimulate each other, they contract in a pattern called _____.

a)

A functional syncytium

b)

Peristalsis

c)

Tetany

d)

Tonus

40.

The degeneration of muscle fibers caused by a lack of proper stimulation and usage is called _____.

a)

Hypertrophy

b)

Atrophy

c)

Dystrophy

d)

Peristalsis

41.

In smooth muscle, calcium ions combine with _____ to allow the actin and myosin cross-bridges to form.

a)

Calmodulin

b)

Troponin

c)

Myosin

d)

Tropomyosin

42.

The following cause smooth muscles to contract except which one?

a)

Acetylcholine

b)

Troponin

c)

Norepinephrine

d)

Oxytocin

43.

The presence of _____ allow cardiac muscle fibers to transmit impulses faster among themselves.

a)

Cell membranes

b)

Nerve fibers

c)

Intercalated disks

d)

Peristalsis

44.

The muscle is called the _____ when it is causing the movement that is being described.

a)

Antagonist

b)

Synergist

c)

Prime mover

d)

Flexor

45.

Muscles that act together to cause the same movements are called _____.

a)

Synergists

b)

Antagonists

c)

Prime movers

d)

Agonists

46.

The sternocleidomastoid muscle was named because of its _____.

a)

Shape

b)

Size

c)

Location

d)

Points of attachment

47.

The _____ muscle forms a broad flat sheet on top of the head.

a)

Temporalis

b)

Buccinator

c)

Epicranius

d)

Frontalis

48.

Which muscle lines most of the inner cheek wall?

a)

Orbicularis oris

b)

Buccinator

c)

Orbicularis oculi

d)

Masseter

49.

Which muscle causes smiling and is attached to the corners of the lips?

a)

Zygomatic

b)

Buccinator

c)

Temporalis

d)

Orbicularis oris

50.

The _____ is the broad flat muscle on the neck, which causes frowning.

a)

Sternocleidomastoid

b)

Platysma

c)

Buccinator

d)

Pterygoid

51.

A condition called temporomandibular syndrome can be caused by contraction of the _____.

a)

Buccinator

b)

Masseter

c)

Platysma

d)

Frontalis

52.

The following muscles belong together except which one?

a)

Masseter

b)

Pterygoid

c)

Temporalis

d)

Digastric

53.

The antagonist of the sternocleidomastoid is the _____.

a)

Splenius capitis

b)

Digastric

c)

Trapezius

d)

Semispinalis capitis

54.

The triangular shaped muscle on the back that rotates the shoulder is the _____

a)

Trapezius

b)

Rhomboid

c)

Deltoid

d)

Levator scapulae

55.

The _____ muscle acts to elevate the shoulders.

a)

Rhomboideus

b)

Levator scapulae

c)

Pectoralis major

d)

Deltoid

56.

Adduction of the scapulae in a posterior view is mainly accomplished by the _____.

a)

Trapezius

b)

Rhomboideus

c)

Serratus anterior

d)

Pectoralis minor

57.

The _____ will move the shoulders on a forward plane.

a)

Pectoralis major

b)

Pectoralis minor

c)

Deltoid

d)

Serratus anterior

58.

An antagonist of the teres major is the _____.

a)

Pectoralis major

b)

Supraspinatus

c)

Infraspinatus

d)

Subscapularis

59.

The _____ is a common intramuscular injection site, which flexes the shoulder or extends the arm.

a)

Pectoralis major

b)

Deltoid

c)

Trapezius

d)

Coracobrachialis

60.

Which triangular thoracic muscle causes the arms to move towards the midline?

a)

Subscapularis

b)

Teres minor

c)

Pectoralis major

d)

Latissimus dorsi

61.

A synergist with the biceps brachii is the _____.

a)

Triceps brachii

b)

Brachialis

c)

Deltoid

d)

Supinator

62.

The pronator teres inserts on the _____.

a)

Radius

b)

Ulna

c)

Humerus

d)

Scapula

63.

The following belong together except which one?

a)

Flexor carpi radialis

b)

Palmaris longus

c)

Flexor digitorium profundus

d)

Extensor carpi ulnaris

64.

Which of the following does not belong with the rest?

a)

External oblique

b)

Transversus abdominis

c)

Internal oblique

d)

Rectus abdominus

65.

The following can be grouped together except which one?

a)

Coccygeus

b)

Sphincter urethrae

c)

Bulbospongiosus

d)

Ischiocavernosus

66.

The psoas major is the antagonist to the _____.

a)

Psoas minor

b)

Gluteus maximus

c)

Iliacus

d)

Pectineus

67.

The _____ muscle attaches to a long band of tendon which runs down the lateral aspect of the leg.

a)

Iliacus

b)

Tensor fasciae latae

c)

Adductor longus

d)

Gracilis

68.

The _____ muscle causes one to cross the leg by adducting the thigh and flexing the lower leg.

a)

Iliopsoas

b)

Sartorius

c)

Gracilis

d)

Adductor magnus

69.

Which muscle runs from the anterior superior iliac spine to the medial tibial surface near the patella?

a)

Vastus medialis

b)

Vastus lateralis

c)

Semitendinosus

d)

Sartorius

70.

Which of the following does not belong with the others?

a)

Semimembranosus

b)

Biceps femoris

c)

Sartorius

d)

Semitendinosus

71.

Which of these does not belong with the others?

a)

Vastus inermedius

b)

Rectus femoris

c)

Vastus medialis

d)

Biceps femoris

72.

The following cause dorsiflexion of the foot except which one?

a)

Extensor digitorum longus

b)

Soleus

c)

Tibialis anterior

d)

Peroneus tertius

73.

Which of the following is attached to the calcaneus?

a)

Gastrocnemius

b)

Tibialis posterior

c)

Peroneus longus

d)

Peroneus tertius

74.

The _____ is inserted on the base of the first metatarsal.

a)

Soleus

b)

Tibialis anterior

c)

Tibialis posterior

d)

Extensor digitorum longus

75.

Spontaneous contraction of random groups of muscles is called _____.

a)

Syncytium

b)

Peristalsis

c)

Fibrillation

d)

Contracture

76.

A disease which results in muscle weakness because of abnormal neuromuscular junction activity is _____.

a)

Poliomyelitis

b)

Myasthenia gravis

c)

Multiple sclerosis

d)

Muscular dystrophy

77.

Which of the following refers to a prolonged muscular spasm?

a)

Myotonia

b)

Paresis

c)

Myalgia

d)

Contracture