Chapter 13 Anatomical Kinesiology quiz

what types of shoulder joint muscles are single joint muscles?

All but biceps brachii and triceps brachii muscles

anterior muscles

pectoralis major, coracobrachialis, subscapularis, and biceps brachii

superior muscles

deltoid and supraspinatus

posterior muscles

infraspinatus, teres minor

inferior muscles

latissimus dorsi, teres major, triceps brachii, long head

origin of biceps brachii

2 heads, LH: upper rim of gleniod fossa, SH: coracoid process of scapula

insertion of biceps brachii

radial tuberosity

innervation of biceps brachii

musculocutaneous nerve (C5, C6)

joint muscles of biceps brachii

shoulder, elbow, radioulnar

action on GHJ with biceps

flexion

action on elbow with biceps

flexion

action on radioulnar joint with biceps

supination

exercises to strengthen biceps

arm curls, chin ups, rope climbing

most powerful state of biceps

as an elbow flexor with supination

how to stretch biceps

full elbow extension and shoulder H aBduction with forearm pronated

origin of Coracobrachialis

coracoid process of scapula

insertion of Coracobrachialis

middle of medial border of humeral shaft

innervation of Coracobrachialis

musculocutaneous nerve (C5-C7)

action on GHJ with Coracobrachialis

flexion and adduction (assists)

exercises for Coracobrachialis

bench press and lat pull

stretching Coracobrachialis

extreme horizontal abduction

origin of pectoralis major

Clavicular: medial 1/3 of anterior surface of clavicle

Sternal: sternum and costal cartilage of ribs 1-6

insertion of pectoralis major

flat tendon to lateral lip of intertubercular groove of the humerus

innervation of pectoralis major

clavicular: lateral pectoral nerve (c5-c7)

Sternal: Lateral and medial pectoral nerve (c5-c8, t1)

action on GHJ with pectoralis major

upper fibers: flexion (up to 60), adduction, internal/medial rotation, horizontal adduction

lower fibers: extension with resistance from full flexion, adduction, internal rotation, horizontal adduction

exercises to strengthen pectoralis major

push ups, pull ups, bench press, throwing/tennis serve

streches for pectoralis major

horizontal abduction, upper fibers (full extension), lower fibers (full abduction)

origin of subscapularis

entire anterior surface of the subscapular fossa

insertion of subscapularis

lesser tubercle of humerus

innervation of subscapularis

upper and lower subscapular nerve (C5, C6)

action on GHJ with subscapularis

internal/medial rotation, adduction, rotator cuff muscle

exercises to strengthen subscapularis

rope climbing and lat pulls

stretches for subscapularis

external rotation with arm adducted

origin of Supraspinatus

Supraspinatus fossa of scapula

insertion of Supraspinatus

superiorly on greater tubercle of humerus

innervation of Supraspinatus

suprascapular nerve (c5, c6)

action of Supraspinatus

abduction

action of rotator cuff muscle with Supraspinatus

stabilization of humeral head in glenoid fossa

exercises for Supraspinatus

"full Can' abduction

stretches for supraspinatus

adduct arm behind back while internally rotated

origin of deltiod

anterior(clavicular, anterior lateral 1/3 of clavicle), Middle (acromial, acromion process), posterior (spine of scapula)

insertion of deltiod

deltoid tuberosity

innervation of deltiod

axillary nerve (c5, c6)

actions of Deltiod

Anterior: ABduction, horizontal ADDuction, flexion, internal rotation

posterior: ABDuction, extension, external rotation, horizontal ABDuction

middle: ABDuction

exercises for deltoid

lateral dumbbell raises

stretches of deltiod

A: horizontal ABD

M: extreme ADD

P: Horizontal ADD

origin of infraspinatus

infraspinous fossa of scapula

insertion of infraspinatus

greater tubercle of posterior humerus

innervation of infraspinatus

subscapular nerve (c5, c6)

action of infraspinatus

external/lateral rotation, H ABD

rotator cuff muscle x infraspinatus

stabilization of humeral head in glenoid fossa

exercises of infraspinatus

external rotation against resistance

stretches of infraspinatus

internal rotation and extreme horizontal ADD

origin of teres minor

posterior axillary border of scapula

insertion of teres minor

posteriorly on the greater tubercle of humerus

innervation of teres minor

axillary nerve (c5/c6)

action of teres minor

external/lateral rotation, H ABD

rotator cuff muscle x teres minor

stabilization of humeral head in glenoid fossa

exercises of teres minor

external rotation against resistance

stretches of teres minor

internal rotation while horizontally adducting

origin of latissmus dorsi

spinous process (T7-T12), spinous process of lumbar vertebrae, lower 3 ribs, posterior crest of illium, back of sacrum

insertion of latissmus dorsi

floor of bicipital/intertubercular groove (passes beneath the axilla)

innervation of latissmus dorsi

thoracodorsal nerve (c6-c8)

action of GHJ with latissmus dorsi

ADD, extension, internal rotation, elevates body with extemities are fixed

exercises for latissmus dorsi

chinning, rope climbing, lat pulls

stretches of latissmus dorsi

External rotation, full ABD, lateral flex and rotation to opposite side

origin of teres major

inferior axillary border of scapula near inferior angle

insertion of teres major

medial lip of bicipital/intertubercular groove of humerus

innervation of teres major

lower subscapular nerve (c5-c7)

action of teres major

ADD, extension, internal rotation

exercises of teres major

lat pulls, internal rotation against resistance

stretches of teres major

External rotation, with 90 ABD

origin of triceps brachii

Long H: infraglenoid tubercle of scapula

lateral H: inferior to greater tubercle on posterior humerus

Medial H: posterior surface of humerus

insertion of triceps brachii

olecranon process of ulna

innervation of tricepts brachii

radial nerve (c6-c8)

action of triceps brachii

extension of shoulder, and extension of elbow

exercises of triceps brachii

push ups and dips

stretches of triceps brachii

shoulder and elbow in maximal flexion

rotator cuff muscles

Supraspinatus

Infraspinatus

Teres Minor

Subscapularis