Sholder

Question 1

Pectoralis major

Answer 1

Clavicular head: Med. 1⁄2 of clavicle front. Sternocostal head: Front of sternum & upper 6 costal cartilages
Lat. lip bicipital groove
Med. & lat. pectoral
Flexion, adduction & med. rotation arm

Question 2

Pectoralis minor

Answer 2

3rd, 4th & 5th ribs near their cartilages.
Upper surface coracoid process
Med. pectoral.
Protraction & depression of scapula

Question 3

Serrates anterior

Answer 3

Upper 8 ribs
Ventral surface of med. border scapula.
N. to serratus ant.
Protraction & upward rotation of scapula, fixation of scapula to chest wall (winging)

Question 4

Trapezius

Answer 4

xternal occipital process, nuchal ligament & C7 spine, thoracic spines & supraspinous ligaments.
Post. border of lat. 1/3 clavicle, med. border acromion& upper lip of scapula spine.
Spinal root accessory, C3 & 4.
Elevates, retracts & rotates scapula upwards

Question 5

Latissimus dorsi

Answer 5

Lower 6 thoracic spines, lower 4 ribs, iliac crest & scapula inf. angle.
Floor bicipital groove.
N. to latissimus dorsi.
Extension, adduction & med. rotation arm

Question 6

Supraspinatus

Answer 6

Supraspinous fossa of scapula.
Upper facet of humerus greater tuberosity.
Suprascapular.
Abduction 0-15 & stabilizes shoulder from above

Question 7

Infraspinatus

Answer 7

Infraspinous fossa of scapula

Middle facet of humerus greater tuberosity

Supra scapular

Adduction & lat. rotation arm, stabilizes shoulder from behind

Question 8

Teres minor

Answer 8

Upper 2/3 of dorsum lat. border scapula

Lower facet of humerus greater tuberosity

Axillary

Adduction & lat. rotation arm, stabilizes shoulder from behind

Question 9

Teres major

Answer 9

Lower 1/3 of dorsum lat. border scapula.
Med. lip bicipital groove.
Lower subscapular.
Extension, adduction & med. rotation arm

Question 10

Subscapularis

Answer 10

Subscapular fossa of scapula.
Lesser tuberosity humerus.
Upper & lower subscapular.
Adduction & med. rotation arm, stabilizes shoulder from infront

Question 11

Deltoids

Answer 11

Ant. border of lat. 1l3 clavicle acromion & lower lip of scapula spine,
Lat. border Deltoid tuberosity.
Axillary.

Flexion & med. rotation (ant fibers), extension & lat. rotation (post. fibers), abduction 90-180 (middle fibers) (flat shoulder)