applied kinesiology chapter 5

Shoulder joint is attached to _____ skeleton via the _______ at SC joint

axial; clavicle

Scapula movement usually occurs with movement of ________

humerus

Wide range of motion of the shoulder joint in many different planes requires a significant amount of _____

laxity

Common to have instability problems: Rotator cuff ___________, and subluxations & __________

impingement; dislocations

The price of mobility is reduced _______

stability

The more mobile a joint is, the ____ stable it is & the more stable it is, the less _______

less; mobile

supraspinous fossa

infraspinous fossa

subscapular fossa

spine of scapula

glenoid fossa

coracoid process

acromian process

inferior angle

head

greater tubercle

lesser tubericle

intertubercle groove

deltoid tuberosity

acromian process

glenoid fossa

lateral border

inferior angle

medial border

superior angle

spine of scapula

glenoid labrum slightly enhances stability by deepening the _______ _____

glenoid fossa

glenoid labrum supports the _____ of the humerus

head

glenoid labrum can be compared to a _________

washer

glenoid labrum injured with sudden _________ movements and with ______

overhead; trauma

Glenohumeral ligaments provide _______, especially __________ and __________

stability; anteriorly; inferiorly

Ligaments in the glenohumeral joint are quite ___ until extreme ranges of _______ reached due to wide range of motion involved

lax; motion

in the glenohumeral joint, ________ is sacrificed to gain ________

stability; mobility

in the glenohumeral joint, determining exact range of each movement is ________ due to accompanying shoulder girdle ________

difficult; movement

glenohumeral joint is frequently injured due to __________ design

anatomical

the glenohumeral joint lacks _________ & _________ in muscles

strength; endurance

___________ are common in the glenohumeral joint

dislocations

the rotator cuff is frequently ________

injured

difference in internal rotation range of motion between an individual’s throwing & nonthrowing shoulders

GIRD

overhead athletes with a GIRD of greater than 20% had a ______ risk of injury

higher

Superior Labral tear from Anterior to Posterior

SLAP tear

the Deltoid, Coracobrachialis, and Teres major are examples of what?

intrinsic glenohumeral muscles

intrinsic glenohumeral muscles originate on ______ & _______

scapula; clavicle

the rotator cuff group are examples of what?

intrinsic glenohumeral muscles

latissimus dorsi and pectoralis major are examples of what?

extrinsic glenohumeral muscles

pectoralis major

coracobrachialis

subscapularis

deltoid

supraspinatus

deltoid

supraspinatus

latissimus dorsi

teres major

infraspinatus

teres minor

All shoulder joint muscles are innervated from the _________ plexus

brachial

rotator cuff muscles

supraspinatus, infraspinatus, teres minor and subscapularis

acronym for rotator cuff muscles

SITS

muscle that attaches to greater tubercle from above (Abduct)

supraspinatus

muscle that attaches to greater tubercle posteriorly (Ext. Rot.)

infraspinatus

muscle that attaches to greater tubercle posteriorly (Ext. Rot.)

teres minor

muscle that attaches to lesser tubercle anterior (Int. Rot.)

subscapularis

muscle that crosses shoulder, elbow, and radioulnar joint

biceps brachii

biceps brachii is weaker in shoulder ________

flexion

muscle that crosses shoulder and elbow joints; agonist for shoulder extension

triceps brachii