Breasts

Question 1

.What are the three components of the breast?

Answer 1

1) Mammary Glands
2) Fat
3) Fibrous Tissue

Question 2

T/F: The the breast is dermally derived?

Answer 2

False: It is epideramally Derived

Question 3

The breast is located where?

Answer 3

• Between the 2nd and 6th intercostal space

- between the sternum and midaxillary line

Question 4

What is the vertical line dividing the armpit into anterior and posterior halves?

Answer 4

Midaxillary Line

Question 5

In what intercostal space is the nipple typically located?

Answer 5

4th

Question 6

What is the ring of pigmented skin surrounding the nipple?

Answer 6

Areola

Question 7

What is the portion fo the breast that extends posterior into the armpit?

Answer 7

Axillary Tail/Process

Question 8

What is cliniclly significant about the axillary tail?

Answer 8

It is often a site for cancer development

Question 9

What is the strong, fibrous septa that supports the breast?

Answer 9

Suspensory Ligamnts

Question 10

Where do the suspensory ligaments run?

Answer 10

From the skin of the breast to the deep layer of the superficial fascia

Question 11

T/F: The mammary gland is a modified sweat gland?

Answer 11

True

Question 12

Where is the mammary gland located?

Answer 12

Within the superficial fascia

Question 13

How many lobes does each mammary gland usually contain?

Answer 13

15-20

Question 14

T/F: All of the lobes of the mammary gland come together to have one main lactiferous duct?

Answer 14

False: They will each have their own

Question 15

What is the expansion of the lactiferous duct that serves as a reservoir for milk during lactation?

Answer 15

Lactiferous Sinus

Question 16

The blood supply to the breasts comes from what major artery before branching?

Answer 16

Axillary Artery

Question 17

The direct blood supply to the breast comes from what arteries?

Answer 17

1) Internal Thoracic Artery
2) Thoracoarcromial Artery
3) Lateral Throacic Artery
4) Intercostal Arteries

Question 18

What is the major function of the lymphatics of the breast?

Answer 18

To keep infection from reaching the breast tissue(to that way the child when nursing is not effected by infection)

Question 19

Which lymph nodes will drain the majority of the breast tissue?

Answer 19

Axillary Nodes

Question 20

The axillary nodes drain how much of the lymph from the breast tissue?

Answer 20

75%

Question 21

T/F: The lymphatic system of both breasts are interconnected and thus nodes from the opposite breast will work to drain the other side.

Answer 21

True

Question 22

What is the most common cancer in women?

Answer 22

Breast Cancer

Question 23

Where will breast cancer spread 1st before entering the blood stream?

Answer 23

The lymphatics of the breast

Question 24

How is breast cancer “staged?”

Answer 24

By the number of lymph nodes effected

Question 25

Which node will be the 1st to be effected when breast cancer occurs?

Answer 25

Axillary nodes -because of the large amount of drainage that is does

Question 26

How could breast cancer spread to the blood stream?

Answer 26

The drainage from the posterior intercostal veins, then into the azygous and hemiazygous systems

Question 27

Where is the most common site of breast cancer development and obvious palpation?

Answer 27

In the axillary tail/process

Question 28

What are the major clinical signs of breast cancer?

Answer 28

1) dimpling of the skin 2) leathery appearance of the skin 3) inversion of the nipple

Question 29

What would cause dimpling of the skin in breast cancer?

Answer 29

The invasion of the sespensory ligamnets

Question 30

What would cause the leathery appearance of the skin in breast cancer?

Answer 30

Invasion of the dermis by the neoplasm

Question 31

What would cause the inversion of the nipple associated with breast cancer?

Answer 31

Invasion of the lactiferous ducts

Question 32

How would breast cancer be noticed by the chiropractor?

Answer 32

Breast cancer is one cause of mid-thoracic pain in women