Anterior Axio Appendicular Muscles

Question 0

Pectoralis major origin

Answer 0

Clavicular head: anterior surface of medial half of clavicle

Sternocostal head: anterior surface of sternum, superior six costal cartilages, aponeurosis of external oblique muscle

Question 1

Pectoral girdle

Answer 1

Pectoralis major, pectoralis minor, subclavius, serratus anterior

Question 2

Pectoralis major insertion

Answer 2

Lateral lip of intertubercular sulcus of humerus

Question 3

Pectoralis major innervation

Answer 3

Lateral and medial pectoral nerves, 
clavicular head (C5, C6)
Sternocostal head (C7, C8, T1)

Question 4

Pectoralis major action

Answer 4

Adducts and medially rotates shoulder joint, draws scapula anteriorly and inferiorly
Acting alone, clavicular head flexes shoulder joint and sternocostal head extends it from the flexed position

Question 5

Pectoralis minor origin

Answer 5

3rd to 5th ribs near their costal cartilages

Question 6

Pectoralis minor insertion

Answer 6

Medial border and superior surface of coracoid process of scapula

Question 7

Pectoralis minor innervation

Answer 7

Medial pectoral nerve

C8, T1

Question 8

Pectoralis minor action

Answer 8

Stabilizes scapula by drawing inferiorly and anteriorly against thoracic wall

Question 9

Subclavius origin

Answer 9

Junction of first rib and its costal cartilage

Question 10

Subclavius innervation

Answer 10

Subclavian nerve

C5, C6

Question 11

Subclavius insertion

Answer 11

Inferior surface of middle third of clavicle

Question 12

Subclavius action

Answer 12

Anchors and depresses clavicle

Question 13

Serratus anterior origin

Answer 13

External surfaces of lateral parts of 1st to 8th ribs

Question 14

Serratus anterior insertion

Answer 14

Anterior surface of medial border of scapula

Question 15

Serratus anterior innervation

Answer 15

Long thoracic nerve

C5, C6, C7

Question 16

Serratus anterior action

Answer 16

Protracts scapula and holds against thoracic wall, rotates scapula

Question 17

Most of anterior wall of axilla

Answer 17

Lateral border of sternocostal head of pectoralis major

Question 18

Anterior axillary fold

Answer 18

Inferior border of sternocostal head of pectoralis major

Question 19

Deltopectoral groove

Answer 19

Pectoralis major and adjacent deltoid form it

In which Cephalic vein runs

Question 20

Clavipectoral (Deltopectoral) triangle

Answer 20

Pectoralis major and deltoid diverge superiorly and with clavicle, form triangle