CHAPTER 10

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The zygomaticus major muscle

contributes to laughing and smiling

The major movement produced during quiet breathing is accomplished by the _________

diaphragm

Contraction of the inferior rectus muscle directs the pupil to look _________

down

The _________blank of the back insert(s) on the ribs and vertebrae.

erector spinae

forearm

extensor carpi ulnaris flexor pollicis longus

Involuntary urination can be caused by incompetence of the _________blank.

external utheral

The adductor longus is named for its _________

function and size

Deborah is performing medial rotation of the hip and thigh as she follows along with an exercise video. Select all of the muscles she is using to perform this action.

gluteus maximus gluteus minimus tensor fasciae latae

A common site for injections is the _________

gluteus medius

An example of a movement from a class I lever system is _________

hyperextension of the head

The _________blank is part of the rotator cuff muscle group.

infraspinatus

Facial muscles are unusual in that they

insert and sometimes originate on skin and connective tissue

The _________blank contract(s) during forced expiration.

internal costal

Of the following muscles of the head, which one wraps around the orbits?

orbicularis oculi

The sternocleidomastoid muscle extends from the mastoid process of the temporal bone to the sternum and medial clavicle. When both sternocleidomastoid muscles contract, the head is flexed. The end of the muscle that connects to the sternum is the _________

origin

The brachioradialis is named for its _________

origin and insertion

The _________blank muscle of the chest has its insertion on the humerus.

pectoralis major

Muscles that have their fasciculi arranged like barbs of a feather along a common tendon are called _________

pennate

All of the following facial muscles elevate the upper lip, except _________blank

platysma

The orbicularis oris muscle

puckers the mouth for kissing

The abdominal muscle that has its origin at the pubic crest and symphysis pubis is the _________blank.

rectus abdominis

When an intramuscular injection is given in the anterior aspect of the thigh, the injection is in the _________

rectus femoris

The muscle that is used to cross the legs is the _________ blank.

sartorius

The _________blank muscle rotates and protracts the scapula, and elevates the ribs.

serratus anterior

When you "pull your tummy in" and compress your abdomen, you use the rectus abdominis, external abdominal oblique, internal abdominal oblique, and transversus abdominis muscles. This is an example of muscles working as _________

synergist

A high school pitcher is told he strained his "rotator cuff." Therefore, he could have damaged any of the muscles listed below, except _________

teres major

n order for both eyes to direct their gaze to the right, which of the following muscles are used?(1) right lateral rectus(2) right medial rectus(3) left lateral rectus(4) left medial rectus

1 and 4

Check all that apply. Which of the following are actions of the lateral leg muscles?

Eversion Plantar flexion

Which muscle shape has muscle fibers that run the length of the muscle and taper at each end

Fusiform

Chad is standing and holding his right thigh and leg in front of his body during a yoga class. Which muscles are used to hold his thigh in this position? (Check all that apply.)

Iliopsoas Adductor longus Sartorius Rectus femoris

Which muscle group is involved when a "pulled groin" occurs?

Thigh adductors

In humans,

back muscles are strong to maintain erect posture

Supination of the forearm and hand is accomplished by the ________

biceps brachii and supinator

Of the following muscles of the thigh, the _________blank is on the posterior side.

biceps femoris

arm

brachialis cora brachii

Nodding the head is an example of movement across the atlanto-occipital joint and a _________blank lever system.

class I

In the body, movement of the mandible at the temporomandibular joint involves a _________blank lever system.

class II

In the body, the action of the biceps brachii muscle pulling on the radius to flex the elbow involves a _________blank lever system.

class three

The flexion of the elbow represents a _________

class three lever system

Match the muscles of the eye with the action they perform.

lateral rectus inferior rectus medial rectus

Out of all of the muscles that are involved in the production of facial expression, the _________

levator palpebrae superioris

The _________blank elevates the scapula.

levator scapulae

The _________blank is a back muscle that extends the head.

longissimus capitis

The _________blank is a muscle involved in chewing gum.

masseter

Muscles that elevate the jaw and close the mouth include the _________

masseter and medial ptergoid

A facial muscle that originates on the mandible is the _________blank.

mentalis

The extensor pollicis brevis moves the _________blank.

thumb

The _________blank is an abdominal wall muscle that inserts on the xiphoid process and the linea alba.

transversus abdominis

Which of the following muscles is named for its shape?

trapezius


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