Upper Limb

Question 1

Medial Pectoral nerve supplies

Answer 1

Pectoralis Major and Minor

Question 2

Insertion of serratus anterior

Answer 2

1. First digitation is opposite to the superior angle of scapula
2. 2nd and 3rd digitations along the medial border
3. Lower 5 are opposite to the inferior angle

Question 3

Winging of the scapula

Answer 3

Caused by injury to the long thoracic nerve which supplies serratus anterior muscle and causes paralysis of the muscle

Question 4

Protraction and depression of the shoulder is the action of

Answer 4

Pectoralis minor and serratus anterior

Question 5

Trapezius origin

Answer 5

1. External occipital protuberance + medial 1/3 of superior nucheal line
2. Ligamentum nuchea and c7 spine
3. T1-T12 spines and supraspinous ligaments

Question 6

Spinal accessory nerve supplies

Answer 6

Trapezius

Question 7

Origin of Lat Dorsi

Answer 7

1. Pelvic: posterior lip of iliac crest
2. Vertebral: lumbar fascia and spines of lower 6T
3. Costal: back of 3/4 lower ribs
4. Scapular: behind inferior angle of scapula

Question 8

Retraction of scapula

Answer 8

Middle fibers of Trapezius and rhomboideus major and minor

Question 9

Nerve to rhomboideus

Answer 9

Levator scapulae, rhomboideus major and minor

Question 10

The muscle that brings the extended arm to the resting position (flexion)

Answer 10

Clavicular head of P. Major

Question 11

Muscle that brings back the flexed arm to the resting position

Answer 11

Sternocostal head of P. Major

Question 12

Bicipital groove of humerus receives insertion of

Answer 12

1. Medial lip: teres major
2. Floor: Lat. Dorsi
3. Lateral lip: pectoralis major

Question 13

Initiation of shoulder abduction

Answer 13

Supraspinatus

Question 14

Greater turberosity of the humerus receives the insertion of

Answer 14

Upper impression: Supraspinatus
Middle impression: Infraspinatus
Lowest impression: teres minor

Question 15

Elevation of scapula

Answer 15

Upper fiber of Trapezius and Levator Scapulae

Question 16

Depression of Scapula

Answer 16

Serratus Anterior, Pectoralis Minor and lower fibers of Trapezius

Question 17

Axillary nerve supplies

Answer 17

Teres Minor and Deltoid muscles

Question 18

Teres muscles origin

Answer 18

1. Minor: upper 2/3 of the dorsal aspect of the lateral border of scapula
2. Major: lower 1/3 of the dorsal aspect of the lateral border of scapula