Pectoral Region

Question 1

Which ribs are the true ribs?

Answer 1

1-7

Question 2

Which ribs are the false ribs?

Answer 2

8-10

Question 3

Which ribs are the floating ribs?

Answer 3

11-12

Question 4

What is the clavopectoral fascia?

Answer 4

covers the subclavius muscle and wraps around the pectoralis minor

Question 5

What is the axillary fascia?

Answer 5

forms the floor of the axilla

Question 6

What are the functions of fascia?

Answer 6

fibrous covering of a muscle

protect muscles from infection

Question 7

What are the four special types of deep fascia in the pectoral region?

Answer 7

Camper’s fascia
clavipectoral fascia
pectoral fascia
axillary fascia

Question 8

What defines the deltoclavopectoral triangle?

Answer 8

bound by pectoralis major, deltoid, and clavicle

Question 9

What two structures run inside the deltoclavopectoral groove?

Answer 9

deltoid branch of thoracoacromial artery

cephalic vein

Question 10

What is the origin of the thoracoacromial artery?

Answer 10

axillary artery

Question 11

What are the four branches of the thoracoacromial artery?

Answer 11

pectoral
acromial
clavicle
deltoid

Question 12

What is the mnemonic for the thoracoacromial artery?

Answer 12

PACD
pectoral
acromial
clavicle
deltoid

Question 13

What is the importance of the T4 level?

Answer 13

superior and inferior mediastinum divisions
branching of the trachea into bronchi
sternal angle

Question 14

What structure does the cephalic vein drain into?

Answer 14

axillary vein

Question 15

What is the dermatome for the nipple line?

Answer 15

T4

Question 16

What is the origin of the lateral thoracic artery?

Answer 16

axillary artery

Question 17

What are the two branches of the axillary artery?

Answer 17

lateral thoracic artery

thoracoacromial artery

Question 18

What structure does the lateral thoracic artery supply?

Answer 18

serratus anterior

Question 19

What is the only superficial nerve in the body?

Answer 19

long thoracic nerve

Question 20

The deltoid branch of the thoracoacromial artery is deep to which vein?

Answer 20

cephalic vein

Question 21

What portion of the arm does the cephalic vein drain?

Answer 21

lateral arm

Question 22

What is the difference between the suspensory ligaments and lactiferous ducts?

Answer 22

suspensory ligaments go towards the skin and lactiferous ducts towards the nipple

Question 23

What are symptoms of breast cancer?

Answer 23

• orange peel appearance
• inversion of nipple
• adenopathy (drains to axillary lymph node)
• secretion

Question 24

What are symptoms of breast cancer?

Answer 24

• orange peel appearance
• inversion of nipple
• adenopathy
• thickening of skin
• palpable lump
• secretion

Question 25

What is the cause of orange peel skin in the breast?

Answer 25

invasion of Cooper’s ligaments

Question 26

What are the areolar glands also called?

Answer 26

glands of Montgomery

Question 27

What do areolar glands secrete?

Answer 27

oily lubricant

Question 28

What are the glands in the lobules called?

Answer 28

tubuloalveolar glands

Question 29

What is the function of lactiferous ducts?

Answer 29

drain each lobule

Question 30

What is the function of the lactiferous sinuses?

Answer 30

where milk accumulates

Question 31

How many ducts open onto the surface of the nipple?

Answer 31

15-20

Question 32

What is the action of the subclavius?

Answer 32

anchor and depress clavicle (SUBclavius)

Question 33

What is the origin of the subclavius?

Answer 33

1st rib

Question 34

What is the insertion of the subclavius?

Answer 34

interior surface of the clavicle (SUBclavicle)