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Obstetrics And Gynecology > Physiology Of Breast And Lactation > Flashcards

Physiology Of Breast And Lactation Flashcards

1
Q

The breast is a mass of what tissues?

A

Glandular, fatty and fibrous

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2
Q

The breasts lie over which muscles?

A

Pectoral muscles

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3
Q

The breast is attached to the chest wall by?

A

Cooper’s suspensory ligament

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4
Q

What layer of tissue surrounds breast glands?

A

Fatty tissue

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5
Q

Glandular tissue of the breast houses?

A

The lobules and ducts

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6
Q

The ducts widen to form ____ close to the nipples.

A

Sacs

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7
Q

Composition of the breast

A

Lobes/Lobules
Acini/Alveoli
Ductules/Ducts
Nipple
Areola
Connective tissue
Fat
Essels

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8
Q

There are how many lobules in the female breast?

A

15-20

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9
Q

Lobules are made up of?

A

Acini or alveoli cells

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10
Q

The basic unit of the breast is?

A

Alveolus

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11
Q

Alveolus is surrounded by?

A

Myoepithelial cells and connective tissue

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12
Q

Each ductule merges into?

A

A larger duct

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13
Q

Each duct has how many openings?

A

9 to 10

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14
Q

Breast development starts from?

A

6/52 of fetal life

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15
Q

Female breast begins growing?

A

At puberty (ages 10-11)

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16
Q

What precedes breast development (thelarche) during puberty?

A

Pubarche (growth of pubic hair)

17
Q

Development of the breast during puberty is a response to?

A

Hormonal changes in puberty (estrogen, progesterone and growth hormones)

18
Q

Effect of Estrogen on breast development?

A

Proliferation and differentiation of ducts
Formation of ductules

19
Q

Effect of Progesterone on Breast development?

A

Development of lobe, lobules and alveoli

20
Q

Growth of breast continues until?

A

Onset of menses 1-2 years afterwards

21
Q

Effects of hormones on development of breasts are more pronounced when?

A

During menses

22
Q

The effects of gonadal hormones on breast development peaks at _______ and regresses afterward?

A

Late luteal phase

23
Q

Cyclical changes are seen in breast and are more pronounced during?

A

Menses and pregnancy

Obstetrics And Gynecology (4 decks)

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