PowerPoint® Clickers SlidesQuestionsprepared by Mark Hollier, Georgia Perimeter College - Clarkston Campus

C H A P T E R

© 2013 Pearson Education, Inc.© Annie Leibovitz/Contact Press Images

10

The Muscular System

The muscle that provides the major force for producing a specific movement isa(n) ______.

a) prime mover

b) antagonist

c) synergist

d) fixator

The muscle that provides the major force for producing a specific movement isa(n) ______.

a) prime mover

b) antagonist

c) synergist

d) fixator

A muscle that immobilizes a bone, or a muscle's origin so that the prime mover has a stable base in which to act, is calleda __________.

a) secondary stabilizer

b) antagonist

c) synergist

d) fixator

A muscle that immobilizes a bone, or a muscle's origin so that the prime mover has a stable base in which to act, is calleda __________.

a) secondary stabilizer

b) antagonist

c) synergist

d) fixator

You could conclude that a muscle with the term "rectus" included in its name is a muscle whose fibers run ______ to the body's vertical axis.

a) at a right angle

b) obliquely

c) parallel

d) perpendicular

You could conclude that a muscle with the term "rectus" included in its name is a muscle whose fibers run ______ to the body's vertical axis.

a) at a right angle

b) obliquely

c) parallel

d) perpendicular

Muscle power is primarily dependenton ________.

a) the degree to which a muscle can shorten

b) the number of cells in the muscle

c) the muscle's shape

d) the direction of fibers in the muscle

Muscle power is primarily dependent on ________.

a) the degree to which a muscle can shorten

b) the number of cells in the muscle

c) the muscle's shape

d) the direction of fibers in the muscle

Bones and muscles work together to move your body. In this case one bone is the ______ and a second bone is the ________.

a) fulcrum; lever

b) lever; pulley

c) pulley; load

d) lever; load

Bones and muscles work together to move your body. In this case one bone is the ______ and a second bone is the ________.

a) fulcrum; lever

b) lever; pulley

c) pulley; load

d) lever; load

In which class of levers is the load between the fulcrum and the effort?

a) First class

b) Second class

c) Third class

d) Fourth class

In which class of levers is the load between the fulcrum and the effort?

a) First class

b) Second class

c) Third class

d) Fourth class

Flexing the forearm with the biceps brachii is an example of which class of lever system?

a) First class

b) Second class

c) Third class

d) Fourth class

Flexing the forearm with the biceps brachii is an example of which class of lever system?

a) First class

b) Second class

c) Third class

d) Fourth class

The muscles of the ______ are rather unusual for muscles because they insert onto the skin or other muscles.

a) face

b) posterior thigh

c) abdomen

d) hand

The muscles of the ______ are rather unusual for muscles because they insert onto the skin or other muscles.

a) face

b) posterior thigh

c) abdomen

d) hand

This muscle is the primary muscle used in smiling.

a) Mentalis

b) Platysma

c) Orbicularis oculi

d) Zygomaticus

This muscle is the primary muscle used in smiling.

a) Mentalis

b) Platysma

c) Orbicularis oculi

d) Zygomaticus

When you bite down on an ice cube, this muscle strongly contracts.

a) Lateral pterygoid

b) Buccinator

c) Hyoglossus

d) Masseter

When you bite down on an ice cube, this muscle strongly contracts.

a) Lateral pterygoid

b) Buccinator

c) Hyoglossus

d) Masseter

When you lie on your back, your ______ muscles contract to lift your head.

a) sternocleidomastoid

b) scalene

c) splenius

d) platysma

When you lie on your back, your ______ muscles contract to lift your head.

a) sternocleidomastoid

b) scalene

c) splenius

d) platysma

The muscles of the back that are most susceptible to injury during heavy lifting belong to the ______ muscle group.

a) quadratus lumborum

b) erector spinae

c) semispinalis

d) splenius

The muscles of the back that are most susceptible to injury during heavy lifting belong to the ______ muscle group.

a) quadratus lumborum

b) erector spinae

c) semispinalis

d) splenius

The ______ is (are) the most important muscle(s) for inspiratory breathing.

a) internal intercostals

b) diaphragm

c) scalenes

d) rectus abdominis

The ______ is (are) the most important muscle(s) for inspiratory breathing.

a) internal intercostals

b) diaphragm

c) scalenes

d) rectus abdominis

The levator ani and ______ muscles form the pelvic diaphragm.

a) ischiocavernosus

b) bulbospongiosus

c) coccygeus

d) gluteus maximus

The levator ani and ______ muscles form the pelvic diaphragm.

a) ischiocavernosus

b) bulbospongiosus

c) coccygeus

d) gluteus maximus

The ______ muscles are antagonistic to each other when moving the scapula forward and backward.

a) pectoralis major and subclavius

b) latissimus dorsi and rhomboid

c) pectoralis minor and serratus anterior

d) serratus anterior and trapezius

The ______ muscles are antagonistic to each other when moving the scapula forward and backward.

a) pectoralis major and subclavius

b) latissimus dorsi and rhomboid

c) pectoralis minor and serratus anterior

d) serratus anterior and trapezius

The _______ muscles include the supraspinatus, infraspinatus, teres minor, and subscapularis.

a) shoulder blade

b) rotator cuff

c) humerus

d) arm extender

The _______ muscles include the supraspinatus, infraspinatus, teres minor, and subscapularis.

a) shoulder blade

b) rotator cuff

c) humerus

d) arm extender

Swimmers tend to have particularlywell-developed ______ muscles.

a) coracobrachialis

b) teres minor

c) subscapularis

d) latissimus dorsi

Swimmers tend to have particularlywell-developed ______ muscles.

a) coracobrachialis

b) teres minor

c) subscapularis

d) latissimus dorsi

Doing pull-ups with the palms facing anteriorly effectively exercises the ______ muscles of the arm.

a) triceps brachii

b) anconeus

c) brachialis

d) pronator teres

Doing pull-ups with the palms facing anteriorly effectively exercises the ______ muscles of the arm.

a) triceps brachii

b) anconeus

c) brachialis

d) pronator teres

The prime mover of pronation is the ______.

a) brachioradialis

b) palmaris longus

c) pronator quadratus

d) supinator

The prime mover of pronation is the ______.

a) brachioradialis

b) palmaris longus

c) pronator quadratus

d) supinator

The ______ muscle is the most powerful muscle in the body.

a) quadriceps femoris

b) adductor magnus

c) gracilis

d) iliopsoas

The ______ muscle is the most powerful muscle in the body.

a) quadriceps femoris

b) adductor magnus

c) gracilis

d) iliopsoas

The ______ muscles comprise the triceps surae that inserts onto the calcaneal tendon and are prime movers of plantar flexion.

a) plantaris and popliteus

b) soleus and tibialis anterior

c) gastrocnemius and tibialis posterior

d) gastrocnemius and soleus

The ______ muscles comprise the triceps surae that inserts onto the calcaneal tendon and are prime movers of plantar flexion.

a) plantaris and popliteus

b) soleus and tibialis anterior

c) gastrocnemius and tibialis posterior

d) gastrocnemius and soleus