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shoulder anatomyy
| Question | Answer |
|---|---|
| Kyphosis | excessive curvature of the thoracic spine, roundback |
| Scoliosis | one shoulder higher than other, hip differences, head not centered over the pelvis, when patient bends at hip, one side of the back is higher, idiopathic (occurs in some and not others, don’t know why) |
| Sprengel’s deformity | o A congenitally undescended scapula May occur unilaterally or bilaterally A high riding scapula may indicate poorly developed or malformed scapula elevators |
| acromial end (AC joint): poorly attached to the sternum but___ | aided by a disc and ligs |
| spine of scapula: prominent ridge on the scapula @ level of ___ | T3 |
| coracoid process:- approximately one inch from the anterior edge of the clavicle- lies deep under the __ | pectoralis major muscle |
| muscles that insert and are palpable at greater tuberosity | supraspinatus infraspinatus teres minor |
| inserts lesser tuberosity; not palpable, performs internal otation | subscapularis |
| most commonly ruptured, abduction in scapular plane | supraspinatus |
| SIT lie under the __ | acromion |
| extension, adduction, internal rotation | teres major |
| deep to the trapezius | Levator Scapulae |
| palpable towards the coracoid process | short head biceps |
| postural muscles which retract the scapula | rhomboids (-major is inferior to minor) |
| posterior wall of the axilla - inserts into the floor of the bicipital groove | Latissimus dorsi |
| prevents winging of the scapula due to its attachment on the anterior medial aspect of the scapula, not palpable | Serratus anterior |
| loose capsule- twice the size of the humeral head | GH Joint and capsule |
| GH Joint and capsule attches to__ | labrum and glenoid rim |
| GH capsule helps support the joint and when the shoulder is __and __, the capsule becomes tightly wound | abducted and externally rotated |
| helps to deepen the socket by increasing contact surface area enhancing stability, dense fibrous structure | labrum |
| injuries to labrum are often the result of __ | glenohumeral instability |
| covers surface of the glenoid and humeral head-distribute joint leads to minimize local stress-minimize friction and wear between two surfaces | articular cartilage |
| GH ligaments- three ligaments – superior, middle and inferior- lax in normal ROM (not supporting shoulder, only support at extreme range of motion)- prevents ___ | extreme ROM “check reins” |
| limits extension and flexion; limits ext. rotation when arm is at side | Coracohumeral ligament |
| junction of the lateral end of the clavicle and the acromion process | Acromioclavicular ligament and joint (AC) |
| prevents the scapula from being displaced medially, anteriorly and superiorlya strong ligament that prevents the clavicle from being displaced medially, anteriorly, and superiorly-still keeps clavicle in place of AC joint tears | Coracoclavicular ligament |
| Coracoclavicular ligamentdivided into two parts: | (medial portion) and Trapezoid (lateral) |
| connects the acromion process with the coracoid process-may be involved with shoulder impingement | Coracoacromial ligament |
| junction of medial aspect of clavicle and manubrium (sternum) | Sternoclavicular ligament and joint (SC) |
| posterior wall formed by the latissimus dorsi and anterior wall formed by the pectoralis major- check lymph nodes for swelling/tenderness | axilla |
| __and __pass through apex of axilla | brachial plexus and axillary artery |
| above superior supraspinatus tendon; acts as buffer for tendon against acromion process -when inflamed it can lead to impingement | Subacromial bursae |
| as with other bursa, help with lubrication | Subdeltoid bursae |
| posterior wall formed by the latissimus dorsi and anterior wall formed by the pectoralis major- check lymph nodes for swelling/tenderness | axilla |
| __and __pass through apex of axilla | brachial plexus and axillary artery |
| above superior supraspinatus tendon; acts as buffer for tendon against acromion process -when inflamed it can lead to impingement | Subacromial bursae |
| as with other bursa, help with lubrication | Subdeltoid bursae |
Created by:
jocbutch