Structure Relations Pectoral Region

Question 1

The platysma muscle is superficial to the

Answer 1

clavicle

Question 2

The cephalic vein is found in between the

Answer 2

deltoid and the clavicular head of the pectoralis major muscle (delto-pectoral groove)

Question 3

The medial pectoral nerve

Answer 3

pierces the pectoralis minor as it approaches the deep aspect of the sternocostal head of the pectoralis major muscle

Question 4

The lateral pectoral nerve

Answer 4

innervates the deep aspect of the clavicular head of the pectoralis major muscle

(does not pierce the pec minor)

Question 5

The thoracoacromial trunk passes

Answer 5

medial to the pectoralis major muscle

Question 6

What artery does the thoracoacromial trunk come off of?

Answer 6

The axillary artery (which is a continuation of the subclavian artery)

Question 7

What branches off of the thoracoacromial trunk and is deep to the pectoralis major muscle

Answer 7

the pectoral branch of the thoracoacromial artery

Question 8

The pectoralis minor muscle is deep to the

Answer 8

pectoralis major muscle