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CHT Exam Prep Shoulder Questions And
Answers Latest Update 2024
glenohumeral ligaments - correct answers Superior, middle, inferior GH ligament stability 0* adducted - correct answers coracohumeral, superior glenohumeral, rotator interval GH ligament stability 45* - correct answers Middle glenohumeral GH ligament stability 90* - correct answers Inferior glenohumeral GH ligament stability 90* abduction, ER - correct answers IGHL anterior band GH ligament stability 90* abduction, IR - correct answers IGHL posterior band glenoid labrum - correct answers fibrocartilage ring that deepens glenoid cavity
pectoralis major action - correct answers Adducts and flexes humerus rotator interval - correct answers the region between the superior edge of the subscapularis and anterior edge of the supraspinatus tendons anterior deltoid action - correct answers flexion, horizontal adduction Middle Deltoid Action - correct answers abduction posterior deltoid action - correct answers extension, horizontal abduction, external rotation in prone rotator interval - correct answers the region between the superior edge of the subscapularis and anterior edge of the supraspinatus tendons Upper Trapezius Action - correct answers Scapular elevation and upward rotation, side bending Middle Trapezius Action - correct answers scapular retraction
infraspinatus action - correct answers external rotation teres minor action - correct answers External rotation subscapularis action - correct answers internal rotation Rotator cuff insertions - correct answers Greater tuberosity: supraspinatus, infraspinatus, teres minor; Lesser tuberosity: subscapularis Pectoralis minor action - correct answers Downward rotation of scapula, raises ribs with inspiration serratus anterior action - correct answers Upward rotation, protraction of scapula coracobrachialis action - correct answers flexion and adduction of humerus Subclavius Action - correct answers depresses clavicle, elevation of first rib Static glenohumeral stabilizers - correct answers Bony structure of humoral head, glenoid; ligaments/capsule; glenoid labrum; negative intra-articular pressure
Dynamic glenohumeral stabilizers - correct answers Muscles (scapular stabilizers, rotator cuff muscles, long head biceps); propioception Rotator cuff's job - correct answers To counteract the deltoid with a compression and inferior slide; sit the humeral head in the glenoid to allow for normal motion Force-couple relationship - correct answers muscles pulling in different direction to accomplish the same motion Force couple: upward rotation of scapula - correct answers Serratus anterior (best), lower trap, upper trap downward rotation of scapula force couple - correct answers Pec minor, levator scapula, rhomboids scapulohumeral rhythm - correct answers a regular pattern of scapular rotation that accompanies and facilitates humeral abduction (Full elevation: 120* GH, 60* scapulothoracic, 2-1 ratio. Clavicle- for first 90, for 10 humeral elevation, 4* clavicle elevation, not after 90; SC elevation 40, AC elevation 20*
Scapular Depressors - correct answers Gravity, weight of arm, lower trap (spinal accessory), lats (thoracodorsal), pec minor (medial pectoral), subclavius (subclavian) Shoulder Flexion - correct answers deltoid (axillary) pectoralis major (med/lat pectoral), biceps brachii (muscukocutaneous) coracobrachialis (muscukocutaneous) Shoulder Extension - correct answers latissimus dorsi (thoracodorsal) posterior deltoid (lower subscap), teres major (axillary), triceps long head (radial) Shoulder External Rotation - correct answers infraspinatus (supeqscapular), teres minor (axillary), posterior deltoid (axillary) Shoulder Internal Rotation - correct answers pectoralis major, subscapularis, latissimus dorsi, teres major, anterior deltoid Shoulder Abduction - correct answers middle deltoid, supraspinatus
Shoulder Adduction Muscles - correct answers pectoralis major, latissimus dorsi, teres major, coracobrachialis, subscapularis, gravity Elbow Flexion - correct answers brachialis, biceps brachii, brachioradialis (radial) Elbow Extension - correct answers triceps brachii, anconeus
