Exam 3 Kinesiology

List the muscles that cause protraction of the scapula.

serratus anterior, pectoralis minor

List the muscles that cause retraction of the scapula.

trapezius II, trapezius III, trapezius IV, rhomboids

List the muscles that cause upward rotation of the scapula.

trapezius II, trapezius IV, serratus anterior

List the muscles that cause downward rotation of the scapula.

levator scapulae, rhomboids, pectoralis minor

List the muscles that cause elevation of the scapula.

trapezius I, trapezius II, levator scapulae, rhomboids

List the muscles that cause depression of the scapula.

trapezius IV, pectoralis minor, subclavius

List the muscles that cause flexion at the GH joint.

anterior deltoid, clavicular pectoralis major, coracobrachialis

List the muscles that cause extension at the GH joint.

latissimus dorsi, posterior deltoid, teres major, sternocostal pectoralis major, infraspinatus, teres minor, subscapularis

List the muscles that cause abduction at the GH joint.

anterior deltoid, middle deltoid, posterior deltoid, clavicular pectoralis major, supraspinatus

List the muscles that cause adduction at the GH joint.

latissimus dorsi, coracobrachialis, teres major, sternocostal pectoralis major, clavicular pectoralis major, subscapularis

List the muscles that cause internal rotation at the GH joint.

anterior deltoid, teres major, latissimus dorsi, clavicular pectoralis major, sternocostal pectoralis major, subscapularis

List the muscles that cause external rotation at the GH joint.

posterior deltoid, infraspinatus, teres minor

List the muscles that cause horizontal abduction at the GH joint.

posterior deltoid, latissimus dorsi, infraspinatus, teres minor

List the muscles that cause horizontal adduction at the GH joint.

anterior deltoid, coracobrachialis, clavicular pectoralis major, sternocostal pectoralis major

List the muscles that cause flexion at the elbow.

brachialis, biceps brachii, brachioradialis, pronator teres

List the muscles that cause extension at the elbow.

triceps brachii, anconeus

List the muscles that cause pronation of the forearm.

pronator teres, pronator quadratus

List the muscles that cause supination of the forearm.

supinator, biceps brachii

In which arm position is the biceps brachii most active?

supination

In which arm position is the brachialis most active?

pronation

In which arm position is the pronator teres most active?

pronation

In which arm position is the brachioradialis most active?

neutral (hammer)

List the function(s) of trapezius I.

elevation

List the function(s) of trapezius II.

elevation, upward rotation, retraction

List the function(s) of trapezius III.

retraction

List the function(s) of trapezius IV.

upward rotation, depression, retraction

What muscle action(s) does the trapezius muscle create when it contracts entirely at once?

elevation, retraction

List the function(s) of the levator scapulae

elevation, downward rotation

The force couple of the levator scapulae and the weight of the arm creates what torque at the scapula?

downward rotation

List the function(s) of the rhomboids.

downward rotation, retraction, elevation

List the function(s) of the serratus anterior.

protraction, upward rotation

The force couple of the serratus anterior and trapezius creates what torque(s) at the scapula?

upward rotation, protraction

List the function(s) of the pectoralis minor.

downward rotation, anterior tilt, depression

List the function(s) of subclavius.

depress scapula, protect and stabilize sternoclavicular (SC) joint

The force couple of the deltoid and supraspinatus creates what torque at the GH joint?

abduction

Which rotator cuff muscle is the most often injured?

supraspinatus

List the function(s) of the supraspinatus.

abduction (weak), flexion (weak), GH joint stabilization

List the function(s) of the infraspinatus.

external rotation, horizontal abduction, extension, GI joint stabilization

List the function(s) of the teres minor.

external rotation, horizontal abduction, extension, GI joint stabilization

List the function(s) of the subscapularis.

internal rotation, adduction, extension (from flexed), GH joint stabilization

List the function(s) of the clavicular pectoralis major.

flexion, horizontal adduction, internal rotation, abduction (to 90 degrees), adduction (from 90 degrees to neutral)

List the function(s) of the sternocostal pectoralis major.

internal rotation, horizontal adduction, extension, adduction

List the function(s) of the coracobrachialis.

horizontal adduction, flexion (assists), adduction (assists), GH joint stabilization

List the function(s) of the latissimus dorsi.

adduction, extension (from flexed), internal rotation, horizontal abduction

List the function(s) of the teres major.

extension (from flexed), internal rotation, adduction (from abducted)

List the function(s) of the biceps brachii.

flexion, supination

List the function(s) of the brachialis.

flexion

List the function(s) of the brachioradialis.

flexion, pronation (to neutral), supination (to neutral)

List the function(s) of the pronator teres.

pronation, flexion (weak)

List the function(s) of the pronator quadratus.

pronation

List the function(s) of the triceps brachii.

extension

List the function(s) of the anconeus.

extension (assists)

List the function(s) of the supinator.

supination

What is the primary depressor of the scapula?

gravity