Layers of the Breast
How many layers are typically identified in breast anatomy?
A. 3
B. 4
C. 6
D.7
Correct answer: B 4
Skin ( Dermis )
Subcutaneous Fat ( pre-mammary )
Mammary ( glandular layer )
Retromammary layer
Which of the following is responsible for the secretion of milk in the breast ?
A. Lactiferous ducts
B. Lactiferous lobules
C. Coopers ligaments
D. Pectoralis major muscle
Correct answer: B
why?- These lobules are responsible for milk production because they contain special cells specifically designed for lactation.
Breast ultrasound is non invasive
A. True
B. False
Correct answer?: A true
What common annotation is used to determine location of findings within the breast?
Correct answer?: Clock face annotation
Breasts develop during what stage?
Correct answer?: puberty
What is the first layer of breast tissue located just beneath the skin?
A. Subcutaneous fat
B. Mammary
C. Retro mammary
D. Pectoralis Major muscle
Correct answer: A subcutaneous fat
why?- Subcutaneous fat is anatomically the considered 2nd layer of the breast, this being because it lies just beneath the skin that forms the first true layer of the breast.
How many lobules in the breast are there?
A. 20
B. 10
C. 40
D. None of the above
Correct answer: C
There are generally around 40 lobules inside each lobes of breast.
How would a simple cyst appear in the breast? ( 3 )
Correct answer?: Anechoic, well defined borders, & posterior acoustic enhancement.
Each breast is divided into how many quadrants?
A. 6
B. 3
C. 4
D. None of the above
Correct answer: C 4
Progesterone increases during pregnancy, helping the breast prepare for milk production.
A.True
B. False
Correct answer?:A True
What kind of organ is the breast commonly considered to be?
A. Dense organ
B. Muscular organ
C. Glandular organ
D. Endocrine organ
Correct answer: C
why? - The breast is commonly considered a glandular organ due to its primary function being its production and secretion of milk, composed primarily of glandular tissue.
How many loves are in the breast?
A. Both D& B
B. 15
C. 40
D. 20
Correct answer: A both D& B
There are generally around 15-20 lobes accounted for in the breast.
In the breast, what muscle lies directly beneath the breast tissue and serves as an important landmark during an ultrasound?
Correct answer?: Pectoralis major muscle
What quadrant is the most common site for breast cancer to develop?
Correct answer?: Upper Outer quadrant
Breast cancer rarely occurs during postmenopausal years.
A.True
B.False
Correct answer?: B false
why?: Breast can can develop at any stage of life but the most common stage for breast cancer to develop is during post-menopause.
Which layer of the breast lies directly beneath the subcutaneous fat and contains glandular tissue responsible for milk production?
A. Retromammary fat layer
B. Mammary layer
C. Skin
D. Secretion layer
Correct answer: B mammary ( glandular layer )
The mammary layer is responsible for milk production because it contains the necessary structures for lactation such as lobules.
This ligament, found within the breast provides structural support and helps maintain its shape.
Correct answer: Coopers ligaments
This shape, often seen in breast lymph nodes on ultrasound, resembles a common organ.
Correct answer: kidney shape
why?: Lymph nodes in the breast often take on a kidney shape on ultrasound due to their anatomical structure.
The nipple is often referred to as the ____ o’clock position.
A. 12
B. 11:30
C. 1
D. 8
Correct answer: A 12 o’clock
This hormone is primarily responsible for breast development during puberty?
Correct answer?: Estrogen
Which layer of the breast is most likely to contain coopers ligaments which help to support overall structure of breast?
A. Subcutaneous fat layer
B. Retromammray layer
C. Mammary layer
D. Skin
Correct answer: C mammary layer
why?- The mammary layer of the breast is where coopers ligaments are located because this is the functional tissue of the breast.
What ribs are associated specifically with the breast?
A. T1, T2
B. T2,T6
C. T7, T 8
D. T 12, T 13
Correct answer: B
Ribs T2 and T6 are specifically associated with the breast.
What lymph nodes are most commonly referred to within the breast, and may appear abnormal on ultrasound if malignant.
Correct answer: Axilliary Lymph nodes
When annotating a breast ultrasound image, this directional term is used to describe a structure located towards the chest wall.
Correct answer?: Posterior
why?: In breast ultrasound, posterior means towards the chest wall, as opposed to anterior ( towards the skin )
During this stage, estrogen levels decrease.
Correct answer: Menopause