Dissection 3

Question 1

Posterior (spinal) part of deltoid

Answer 1

Extension at shoulder

Question 2

Middle (acromial) part of deltoid

Answer 2

Abduction of shoulder (takes over from supraspiantus beyond 15 degrees)

Question 3

Anterior (clavicular) part of deltoid

Answer 3

Flexion at shoulder

Question 4

Function of trapezius

Answer 4

Elevation, depression and retraction of scapula

Question 5

Levator scapulae

Answer 5

Elevation of scapula and inferior rotation of glenoid fossa

Question 6

Rhomboid major and minor

Answer 6

Retraction of scapula and inferior rotation of glenoid fossa

Question 7

Supraspinatus

Answer 7

First 15 degress of abduction at shoulder

Question 8

Infraspinatus / teres minor

Answer 8

Stabilise head of humerus in glenoid/lateral rotation at shoulder

Question 9

Subscapularis

Answer 9

Stabilise head of humerus in glenoid/medial rotation at shoulder

Question 10

Teres major

Answer 10

Adduction/medial rotation at shoulder

Question 11

Supraspinatus insertion

Answer 11

Greater tubercle of humerus

Question 12

Infraspinatus insertion

Answer 12

Greater tubercle of humerus

Question 13

Teres minor insertion

Answer 13

Greater tubercle of humerus

Question 14

Subscapularis insertion

Answer 14

Lesser tubercle of humerus