Anterior Axio-Appendicular Muscles

Question 0

Insertion of Pectoralis Major

Answer 0

Lateral Lip of Intertubercular Sulcus of Humerus

Question 1

Origin of Pectoralis Major

Answer 1

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 2

Innervation of Pectoralis Major

Answer 2

Lateral and Medial Pectoral Nerves
Clavicular Head- c5 C6
Sternocostal Head- C7 C8 t1

Question 3

Actions of Pectoralis Major

Answer 3

Adducts and Medially Rotates Shoulder Joint, draws Scapula anteriorly and inferiorly
Acting Alone: Clavicular head flexes shoulder joint
Sternocostal head extends it from the flexed position

Question 4

Origin of Pectoralis Minor

Answer 4

3rd-5th Ribs near their costal cartilages

Question 5

Insertion of Pectoralis Minor

Answer 5

Medial border and Superior surface of Coracoid process of Scapula

Question 6

Innervation of Pectoralis Minor

Answer 6

Medial Pectoral Nerve c8 t1

Question 7

Actions of Pectoralis Minor

Answer 7

Stabilizes Scapula by drawing inferiorly and anteriorly against Thoracic Wall

Question 8

Origin of Subclavius

Answer 8

Junction of 1st Rib and its Costal Cartilage

Question 9

Insertion of Subclavius

Answer 9

Inferior surface of Middle third Clavicle

Question 10

Innervation of Subclavius

Answer 10

Subclavian nerve C5 c6

Question 11

Actions of Subclavius

Answer 11

Anchors and depresses Clavicle

Question 12

Origin of Serratus Anterior

Answer 12

External surfaces of Lateral parts of 1st-8th Ribs

Question 13

Insertion of Serratus Anterior

Answer 13

Anterior surface of Medial border of Scapula

Question 14

Innveration of Serratus Anterior

Answer 14

Long Thoracic nerve c5 C6 C7

Question 15

Actions of Serratus Anterior

Answer 15

Protracts Scapula and holds against Thoracic Wall

Rotates Scapula