Breast Anatomy

Question 1

Breast aka

Answer 1

Mammary gland

Question 2

Where are lobulated, glandular structures located

Answer 2

Superficial fascia of the

Anterolateral wall of the thorax

Question 3

The varying size and shape depends on

Answer 3

Fat and glandular tissue

And condition of the suspensory ligaments

Question 4

Base of breast is overlying

Answer 4

Pectoralis major and serratus anterior muscles

Question 5

Apex portion

Answer 5

Near nipple

Question 6

Breast extends from –rib to ?

Answer 6

2nd rib to 6/7 rib

Question 7

Axillary tail is located

Answer 7

Upper, lateral base of breast to the axillary fossa.

Anterior end tapered, ending in the nipple

Question 8

Ligaments that support breast

Answer 8

Coopers

Like spokes on a bike

Question 9

These look like spokes on a bike

Answer 9

15-20 lobes

Question 10

What is the junction of inferior breast with anterior chest wall, called.

Answer 10

Inframammary crease or fold

Question 11

Each lobe is divided into

Answer 11

Many lobules

Question 12

Basic structural unit of breast

Answer 12

Lobules

Question 13

Lobules contain (5)

Answer 13

1. Several acini
2. Draining ducts
3. Interlobule stroma (connective tissue)
4. . Terminal ductal lobular unit (collectively)
5. Ampulla

Question 14

Acini are located

Answer 14

At very ends of lobules

Question 15

Often where cancers originate

Answer 15

Terminal ductal lobular unit

Question 16

Ampulla

Answer 16

Serves as a reservoir for milk, collecting station

Question 17

Lobules size is affected by

Answer 17

Age and hormones

Question 18

Involution

Answer 18

The normal process of decreasing lobule size with age and after pregnancy

Question 19

Glandular elements of lobules

Answer 19

Acini

Question 20

Formed by openings of each acini

Answer 20

Lactiferous ductules

Question 21

Lactiferous ducts are formed by

Answer 21

Joined ductules

One duct for each lobe

Question 22

Ducts join where

Answer 22

Before opening into nipples

Question 23

Nipples are

Answer 23

Small projections containing a collection of duct openings

Question 24

Lymphatic vessels of breast drain into what sets of nodes

Answer 24

Axillary lymph nodes, laterally

Internal mammary lymph nodes, medially

Question 25

What nodes are often evaluated on mammograms

Answer 25

Axillary

Question 26

3 tissue variations

Answer 26

Glandular
Connective/fibrous
Fatty

Question 27

What type of tissue is dense and casts a homogeneous shadow

Answer 27

Connective/ fibrous

Question 28

What type of tissue increases natural radiographic contrast

Answer 28

Fatty tissue

Question 29

What type of tissue increases during pregnancy and lactation; decreases postpartum and age

Answer 29

Glandular tissue

Question 30

What type of tissue is primary compenent of post pubertal adolescent breast

Answer 30

Connective tissue fibrous tissue

Question 31

What type of tissue replaces glandular tissue after lactation and advancing age

Answer 31

Fatty tissue

Question 32

All of the breast tissue is called

Answer 32

Trabeculae

Question 33

Trabeculae

Answer 33

Small blood vessel’s, fibrous connective tissue and other small structures seen collectively on a mammogram

Question 34

Trabecular patterns vary according to

Answer 34

Percentage of glandular, fibrous and adipose tissue within the breast.

Most patterns are symmetrical

Question 35

30-50 y/o

Young women with three or more pregnancies

Answer 35

Fibro-fatty

Question 36

4 types of women with fibrous breast tissue

Answer 36

1. Post puberty adolescents
2. 15-30 y/o
3. Females over 30 with no children
4. . Post menopausal women taking hormone replacement therapy
5. Pregnant or lactating females

Question 37

Fatty breast tissue

4 types of people

Answer 37

Children
Male
Post-menopausal women
Women over 50