Shouder

Question 1

Describe the anatomy of the GH joint

Answer 1

Glenoid fossa medially
Fibrocartilaginous glenoid labrum deepens joint 1/3 of hum head
Lat head of humerous
135 degrees angle of inclination
30-40 degrees posteriorly
JC - GL to margin of numeral head
Synovial membrane

Question 2

What are the ligaments of the GH joint?

Answer 2

Sup GH lig
Middle GH lig
Inf GH lig
Transverse numeral lig
Coracohumeral lig
Coracoacromial lig

Question 3

What is the anatomy of the rotator cuff muscles?

Answer 3

Stabilises shoulder joint
Supraspinous - abducts arm
Infraspinatus - lat rot
Teres Minor - lat rot
Sub scapularis- med rot

Question 4

Describe the anatomy of deltoid

Answer 4

Ant, mid, post fibres
Abduction, flex, med rot, ext, lat rot
Origin - lat clav, acromion, lower border spine of scapular
Insert - deltoid tuberosity humerous

Question 5

Describe the anatomy of Pectoralis major

Answer 5

Flex, med rot, add
Orig- ant med clav, ant sternum, ant upper 6 CC and ribs
Insert- via laminated tendon - lat lip intertubuercular groove
Med and lat pectoral nerves C8-T1 and C5-6

Question 6

Describe the anatomy of Coracobrachialis

Answer 6

Add, Flex
Orig- CP
Insert - med shaft humerus
Musculocutaneous nerve C6-7

Question 7

Describe the anatomy of Teres Major

Answer 7

Add, med rot
Orig- Lower lat border and inf angle scap
Insert- med lip IT groove humerus
Lower subscapular nerve C6-7

Question 8

Describe the anatomy of Lat Dorsi

Answer 8

Add, med rot, ext
Orig- via TF - SPs T7-12, all lumbar and sacral vertebrae, post lip IS, lower 4 ribs, inf angle scap
Insert- via long flat tendon - IT groove humerous inf
Thoracodorsal C6-8