Pectoralis major, Coracobrachialis

Question 1

Insertion of the entire pectoralis major?

Answer 1

Crest of greater tubercle of humerus

Question 2

Innervation of entire pectoralis major?

Answer 2

Medial and lateral pectoral nerve

C5-T1

Question 3

Action of entire pectoralis major?

Answer 3

Adduction

Internal rotation

Question 4

Action of clavicular and sternocostal parts of pectoralis major?

Answer 4

Flexion

Assist in respiration when shoulder is fixed

Question 5

Origin of the sternocostal part of pectoralis major?

Answer 5

Sternum

Costal cartilages 1-6

Question 6

Origin of abdominal part of pectoralis major?

Answer 6

Rectus sheath (anterior layer)

Question 7

Origin of coracobrachialis?

Answer 7

Coracoid process of Scapula

Question 8

Insertion of coracobrachialis?

Answer 8

Humerus

in line with crest of lesser tubercle

Question 9

Innervation of coracobrachialis?

Answer 9

Musculocutaneous nerve

C5-C7

Question 10

Action of coracobrachialis?

Answer 10

Flexion
Adduction
Internal rotation

Question 11

Origin of the clavicular part of Pectoralis major?

Answer 11

Clavicle (medial half)