Lecture Quiz 6

Flat on flat

AC joint bone fit

Thin but complete

AC joint joint capsule integrity

Acromioclavicular, trapezoid, conoid

AC joint ligament support

No muscles cross

AC joint musculature stability

Large knobby end &` small shallow notch, articular disc

SC joint bone fit

Fairly tight, partial vacuum

SC joint joint capsule

Anterior SC, Posterior SC, Interclavicular, Costoclavicular

SC joint ligament support

Subclavius closest to crossing

SC joint musculature stability

LT, pec minor

muscles that limit scapular elevation

UT, LS

muscles that limit scapular depression

MT, rhomboids

muscles that limit scapular protraction

SA

muscles that limit scapular retraction

LD, teres major

muscles that limit shoulder abduction

Posterior deltoid

muscles that limit shoulder adduction

LD, teres major, posterior deltoid

muscles that limit shoulder flexion

Coracohumeral

ligaments that limit shoulder flexion

Glenohumeral

ligaments that limit shoulder extension

Pec major, anterior deltoid

muscles that limit shoulder extension

Infraspinatus, teres minor

muscles that limit shoulder MR

Coracohumeral, glenohumeral

ligaments that limit shoulder LR

Pec major, LD

muscles that limit shoulder LR

Glenohumeral

ligaments that limit shoulder HABD

Pec major

muscles that limit shoulder HABD

Posterior deltoid

muscles that limit shoulder HADD

Protraction, UR, elevation

scapular companion movements for flexion

Retraction, DR, depression

scapular companion movements for extension

UR, elevation

scapular companion movements for abduction

DR, depression

scapular companion movements for adduction

Protraction

scapular companion movements for MR

Retraction

scapular companion movements for LR

Protraction

scapular companion movements for HADD

Retraction

scapular companion movements for HABD

PM: elevation | AM: retraction

UT movements

PM: retraction | AM: none

MT movements

PM: depression | AM: retraction

LT movements

PM: elevation | AM: retraction

LS movements

PM: retraction | AM: elevation

rhomboids movements

PM: protraction | AM: none

SA movements

PM: depression | AM: protraction

pec minor movements

PM: none | AM: depression

subclavius movements

UT & LT

muscles that create UR through a force couple

Pec minor & LS

muscles that create DR through a force couple

PM: flexion & HADD | AM: MR

AD movements

PM: abduction | AM: none

MD movements

PM: extension & HABD | AM: LR

PD movements

PM: abduction | AM: none

supraspinatus movements

PM: LR & HABD | AM: none

infraspinatus movements

PM: LR & HABD | AM: none

teres minor movements

PM: MR | AM: HADD

subscapularis movements

PM: flexion up to 90* | AM: none

pec major clavicular head movements

PM: extension from 180-90* | AM: none

pec major sternal head movements

PM: adduction, MR, HADD | AM: none

pec major (both heads) movements

PM: extension, adduction, MR | AM: none

LD movements

PM: extension, adduction, MR | AM: none

teres major movements

PM: none | AM: flexion, adduction, HADD

coracobrachialis movements

PM: none | AM: flexion, abduction, HABD

biceps brachii shoulder movements

PM: none | AM: extension, adduction

triceps brachii (LH) shoulder movements