Shoulder Girdle

Question 1

Name the muscles of the rotator cuff.

Answer 1

Supraspinatus, Infraspinatus, Teres Minor, Subscapularis

“SITS”

Question 2

What is the blood supply for the Supraspinatus?

Answer 2

Suprascapular artery

Question 3

What is the blood supply for the Infraspinatus?

Answer 3

Suprascapular

Question 4

What is the blood supply for the Teres minor?

Answer 4

Scapular circumflex

Question 5

What is the blood supply for the Subscapularis?

Answer 5

Lateral thoracic and Subscapular arteries

Question 6

Name the nerve, action, and origin to insertion of the Supraspinatus.

Answer 6

Suprascapular, abduction, Fossa of scapula to the greater tubercle of humerus

Question 7

Name the nerve, action, and origin to insertion of Infraspinatus.

Answer 7

Suprascapular, External (lateral) rotation, fossa of scapula to greater tubercle of humerus

Question 8

Name the nerve, action, and origin to insertion of the Teres minor.

Answer 8

Axillary, external (lateral) rotation, lateral border dorsal scapula to greater tubercle of humerus

Question 9

Name the nerve, action, and origin to insertion of Subscapularis.

Answer 9

Subscapular, Internal (medial) rotation, Subscapular fossa of scapula to lesser tubercle of humerus

Question 10

Minus the rotator cuff, name the other muscles of the shoulder girdle.

Answer 10

Latissimus Dorsi, trapezius, rhomboid, Serratus anterior, deltoid, Teres major, pectoralis minor
“Look, T, right side down the park”

Question 11

Latissimus Dorsi: blood supply.

Answer 11

Descending scapular artery

Question 12

Trapezius: blood supply.

Answer 12

Descending scapular artery

Question 13

Rhomboid: blood supply.

Answer 13

Descending scapular artery

Question 14

Serratus anterior: blood supply.

Answer 14

Descending scapular artery

Question 15

Deltoid: blood supply.

Answer 15

Descending scapular artery

Question 16

Teres major: blood supply

Answer 16

Descending scapular artery

Question 17

Pectoralis minor: blood supply.

Answer 17

Descending scapular artery

Question 18

Latissimus Dorsi: nerve, action.

Answer 18

Thoracodorsal, extension and internal (medial) rotation of arm

Question 19

Trapezius: nerve, action.

Answer 19

Spinal accessory, adduct scapula.

Question 20

Rhomboid: nerve, action, origin to insertion.

Answer 20

Dorsal scapular, scapular retraction, SP of C7 & T1 (minor) and SP of T2-T5 (major) to scapula

Question 21

Serratus anterior: nerve, action.

Answer 21

Long thoracic, adheres scapula to chest wall

Question 22

Deltoid: nerve, action, origin to insertion.

Answer 22

Axillary, abduction of the arm, (trapezius, clavicle, Acromion, spine of scapula) to (deltoid tuberosity of humerus)

Question 23

Teres major: nerve, action.

Answer 23

Subscapular, external medial rotation and adducts arm

Question 24

Pectoralis minor: nerve, action

Answer 24

Medial pectoral nerve, draws scapula forward