Exam (elaborations)

IBCLC Exam #1 | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+

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What week gestation does the breast begin to develop in utero? Correct Answer: *4th* week of gestation Where does the primitive milk streak develop Correct Answer: Bilaterally from the axilla to the groin By the 5th week gestation the milk streak becomes what? Correct Answer: Mammary Milk Ridg...

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IBCLC Exam #1 | QUESTIONS &
ANSWERS (VERIFIED) | LATEST
UPDATE | GRADED A+

What week gestation does the breast begin to develop in utero?

Correct Answer: *4th* week of gestation

Where does the primitive milk streak develop

Correct Answer: Bilaterally from the axilla to the groin

By the 5th week gestation the milk streak becomes what?

Correct Answer: Mammary Milk Ridge (or milk line)

Thickening and inward growth into the chest wall continues during what weeks

gestation?

Correct Answer: *7-8* weeks gestation

Between weeks 12 and 16 gestation specialized cells differentiate into what?

Correct Answer: Smooth muscles of the nipple and areola

1

,What forms the mammary pit?

Correct Answer: Lactiferous ducts and their branches open into a shallow epithelial

depression

What failure creates an inverted nipple?

Correct Answer: When the Mammary pit fails to elevate

What is witches milk?

Correct Answer: After birth, a neonate's mammary tissue (under the influence of

maternal hormones) might recreate colostral like fluid

At what age do the primary and secondary ducts grow and divide and form the terminal

end buds that become the alveoli?

Correct Answer: 10-12 years old (puberty)

When does *complete* development of mammary function occur?

Correct Answer: During pregnancy

What is superficial fiscia?

Correct Answer: Fibrous tissue beneath the skin

Where is the breast located?

Correct Answer: In the superficial fascia between the *2nd rib and 6th ICS*

2

,What are the two major divisions of the breast?

Correct Answer: Parenchyma and Stroma

What makes up the Parenchyma?

Correct Answer: Ducts, lobes, and aveoli

What are alveoli?

Correct Answer: Small sacs where milk is secreted

What makes up the Stroma?

Correct Answer: Connective and fat tissue, blood vessels, nerves, and lymphatics.

What is Cooper's Ligament?

Correct Answer: Suspensory ligament that are the fibrous connections between the

inner side of the breast skin and pectoral muscles. Help to shape the breasts

What does the nipple contain?

Correct Answer: 15-25 milk ducts, smooth muscle fibers, sebaceous and apocrine

sweat glands, and dense innervations of sensory nerve endings

How many milk ducts does the nipple contain?

Correct Answer: 15-25

3

, What are Montgomery Tubercles?

Correct Answer: Sebaceous glands in the areola surrounding the nipple

What do the Montgomery Tubercles secrete?

Correct Answer: *Oily secretions* (lipoid fluid) to keep the areola and the nipple

lubricated and protected

What 2 arteries supply blood to the breast (60% / 30%)?

Correct Answer: Internal mammary artery (60%) and lateral thoracic artery (30%)

Where does the lymphatic system of the breast drain excess fluids from tissue space,

bacteria and cast off cells?

Correct Answer: Auxiliary lymph node

Where do the nerves of the breast branch from?

Correct Answer: 4th, 5th, and 6th intercostal nerve

What nerve supplies the greatest amount of *sensation* to the areola?

Correct Answer: *4th* intercostal nerve

What part of the breast is most sensitive?

4

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Exam (elaborations) ·

Exam (elaborations)

IBCLC Exam #1 | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+

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