Breast

Question 1

Breast is

Answer 1

A modified non capsulated sweat gland

Question 2

Location of the breast

Answer 2

between 2nd -6th rib
Lies On the superficial fascia
It is separated from the deep fascia by the retromammary space.

Question 3

Three muscles that are connected to the breast are_____

Answer 3

Pectoralis major(2/3)
Seratus anterior
External oblique

Question 4

Nipple(Apex) of the breast is ____

Answer 4

The rounded protruding part of the breast which contains the various excretory ducts(pores).
It is located at the level of the 4th Intercoastal space.
It doesn’t contain any fat( adipose tissue).

Question 5

Base of the breast___

Answer 5

Lies on the muscles

Question 6

Areolar of the breast ___

Answer 6

Dark portion around the nipple
It doesn’t contain fat.

Question 7

Number of lobes in the breast

Answer 7

15-20

Question 8

The lobes are separated by the____

Answer 8

Ligaments of cooper

Question 9

Number of lobules

Answer 9

20-40 each containing about 15-20 lactiferous ducts.

Question 10

Lactiferous sinus

Answer 10

A enlarged portion of the lactiferous duct just before the nipple. It is a reservoir of milk

Question 11

Arterial vasculature of the breast

Answer 11

Internal Thoracic artery( mammary and perforating branch)
Lateral Thoracic artery
Intercoastal artery( perforating branches)

Question 12

Circular plexus is located at ____

Answer 12

Base of the nipple

Question 13

Lymphatic drainage of the breast

Answer 13

Central and lateral drainage — pectoral group(75%)
Upper drainage —– apical group
Medial group— parasternal group and the anastomosis of the right and the left breast
Inferoposterior—- lymph node of the linea alba and the rectus sheath

Question 14

Divisions of the Axillary lymph node

Answer 14

Pectoral group( on the pectoralis minor)
Brachial groups
Central group
Apical group
Sub scapularis group

Question 15

Ductal carcinoma is

Answer 15

Carcinoma of the ducts

Question 16

Lobular carcinoma is ____

Answer 16

Carcinoma of the lobes

Question 17

Invasion of the ligaments of cooper by the carcinoma leads to ___

Answer 17

Peau de orange

Question 18

Sub clavian trunk In the right side drains into the

Answer 18

Sub clavian vein

Question 19

Left sub clavian trunk drains into

Answer 19

Thoracic duct

Question 20

Lymphatic drainage is divided into

Answer 20

1. Sub areolar lymphatic plexus( below the areolar)
2. Deep lymphatic plexus ( on the deep fascia)

Question 21

Plexus radiate in

Answer 21

Many directions

Question 22

All lymph nodes drain into the ____

Answer 22

Apical group and then to the sub clavian trunk

Question 23

Tail of the breast

Answer 23

Extends into the axilla

Question 24

Mammary ridge extends from the

Answer 24

Axilla to the groin