A & P chapter 10

Well developed mental is muscles result in

A dimple in the chin

The synergistic is

A group of muscles that work together to cause movement

The orbicularis oris muscle

Puckers the mouth for kissing

All of the following muscles are rotators of the arm. Which is a lateral rotator of the arm?

deltoid

The muscles of the anterior group of forearm muscles are primarily

flexors

Which abdominal wall muscle inserts on the 10th to 12th ribs and rectus sheath?

internal abdominal oblique

Flexion of the hip is a movement produced by the

Flexion of the hip is a movement produced by the

Which of the following represents a class I lever system

Hyperextension of the Head

Facial muscles are unusual in that they

Insert and sometimes originate on skin and connective tissue

When a skeletal muscle contracts to cause a given moment, the more movable end of the attachment of the muscle is termed its

Insertion

Muscles that change the shape of the tongue are called

Intrinsic muscles

In the body's lever systems, the

Joint represents the fulcrum point

Which of the following muscles does not extend the neck

Longus capitis

Which of the following muscles is involved in chewing gun

Masseter

Muscles that elevate the jaw and close the mouth include the

Masseter and medial prerygoid

Raising the eyebrows is the action of the .... muscles

Occipitofrobtalis

The disgastric muscle is involved in

Opening the mouth

The type of muscle that functions as a sphincter is

Orbicular

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

Orbicularis oculi

Closing or puckering the lips is the action of the ..... muscle

Orbicularis oris

The sternocleimastoid muscle extends from the mastoid process of the temporal bone to the sternum and medial clavicle. The end of the muscle that connects to the sternum is the

Origin

The brachioradialis is named for its

Origin and insertion

Which of the following muscles is involved in swallowing

Palatopharyngeus

Muscles that have their fascicli arranged like barns of a feather along a common tendon are called

Pennate

The type of muscle that can contract with the greatest force is the

Pennate

Which of the following muscles is named for its location

Quadriceps femoris

The levator palpebrae superioris muscle

Raises the eyelid

The muscle shape that has the capacity to shorten to the greatest degree is

Straight

In order to stabilize the hyoid so that the larynx can be elevated in swallowing, the ..... muscle group is used

Suprahyoid

When you pull your tummy in and compress your abdomen, you use the rector abdominal, external abdominal oblique, internal abdominal oblique, and trans versus, abdominis musle. This is an example of muscles working as

Synergists

The insertion is

The end of the muscle where the action occurs

Which of the following muscles is named for its shape

Trapezius

Which of the following is found in the posterior group of forearm muscles?

abductor pollicis longus

The gluteus maximus

accounts for a sprinter's stance

In humans

back muscles are strong to maintain erect posture.

Supination of the forearm and hand is accomplished by the

biceps brachii and supinator

Raising your arm to shoulder level is accomplished almost entirely by the

deltoid

The major movement produced during quiet breathing is accomplished by the

diaphragm.

Damage to the muscle called the levator ani would result in

difficult defecation and decreased support for the pelvic viscera

In order to put on a glove, the fingers are abducted by hand muscles called the

dorsal interossei

Which back muscle inserts on the ribs and vertebrae?

erector spinae

The anconeus works with the triceps brachii to

extend the forearm.

A muscle that extends both the wrist and the index finger is the

extensor indicis.

Which abdominal wall muscle is the most superficial of the oblique muscles?

external abdominal oblique

The teres major and teres minor are not involved in

flexion and abduction of the arm.

The radial pulse can be felt just lateral to the tendon of the

flexor carpi radialis

Which of the following muscles flexes the wrist?

flexor carpi radialis

If a person drums their fingers on the table, they would be using which of the following muscles?

flexor digitorum profundus

The largest buttocks muscle is the

gluteus maximus

The rotator cuff muscles

hold the head of the humerus in the glenoid fossa of the scapula

Which of the following muscles is part of the rotator cuff?

infraspinatus

Which of the following muscles contracts during forced expiration?

internal intercostals

What back muscle originates on the vertebral spinous processes?

interspinales

The arm is attached to the thorax by the

latissimus dorsi and pectoralis major

The pelvic diaphragm is formed by the

levator ani and coccygeus muscles.

Which muscle will elevate the scapula

levator scapulae

Which back muscle extends the head?

longissimus capitis

Which back muscle extends and rotates the vertebral column?

multifidus

Which of the following muscles of the chest has its insertion on the humerus?

pectoralis major

Which muscle will depress the scapula or elevate the ribs

pectoralis minor

Which muscle flexes the vertebral column?

psoas minor

Which abdominal wall muscle originates on the iliac crest and the lower lumbar vertebrae?

quadratus lumborum

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

rectus abdominis

Which muscle retracts, rotates, and fixes the scapula?

rhomboideus major

Contracting the right sternocleidomastoid muscle would

rotate the head toward the right

Which muscle rotates and protracts the scapula, and elevates the ribs

serratus anterior

Which muscle fixes the clavicle or elevates the first rib

subclavius

Of the following muscles of the forearm, which one rotates the forearm to turn the palm upwards?

supinator

A tennis player complains of severe pain in the shoulder when serving or returning an overhead volley. Which of the rotator cuff muscles is probably damaged?

supraspinatus

The extensor pollicis brevis moves the

thumb

The thenar muscles are involved in controlling the ____; the hypothenar muscles control the ____

thumb; little finger

Which abdominal wall muscle inserts on the xiphoid process and the linea alba

transversus abdominis

Which of the following muscles moves the scapula

trapezius

If a man exercises by doing push ups every day, he would strengthen or enlarge which of the following muscles?

triceps brachii

Which of the following muscles extends the forearm and has its insertion on the ulna?

triceps brachii

The flexion of the elbow represents a

Class III lever system

The zygomaticus major muscle

Contributes to laughing and smiling

The depressor anguli oris muscle

Contributes to pouting

The adductor longish is named for its

Function and size

When you say ah and stick out your tongue, which muscle do you use

Genioglossus

In 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

If abdominal muscles are contracted while the vertebral column is fixed this will aid in

All of these choices are correct.

The orbicularis oculus muscle

Causes crows feet wrinkles

Contracting the trapezius muscle would

Extend and laterally flex the neck

Skeletal muscles

Extend from one bone to another bone

The prime mover is

The muscle that does most of the movement

The origin is

The stationary end of the muscle

The infraspinatus

laterally rotates the arm

An antagonist

A muscle working in opposition to another muscle

Contraction of the inferior rectus muscle directs the pupil to look

Down