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Repro Week 2 > Breast Tissue > Flashcards

Breast Tissue Flashcards

1
Q

what are three tissue types of the breast?

A

glandular
adipose
connective tissue

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2
Q

what do the glandular tissues of the breast empty into ?

A

lactiferus ducts

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3
Q

what do lactiferus ducts empty into?

A

lactiferus sinus

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4
Q

the mammary glands in the breast are suspended by what?

A

suspensory ligaments called logaments of cooper

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5
Q

what is the epithelium of the resting mammary glands?

A

stratified cuboidal epithelium

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6
Q

what separates the epithelium of the mammary glands from the surrounding stroma?

A

basal lamina

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7
Q

mixed in with the epithelium of the mammary glands is what cell type?

A

myoepithelium cells

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8
Q

what two muscles does the breast lay on top of?

A

pec major and serratus anterior

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9
Q

what separates breast tissue from the muscles under?

A

retromammary space

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10
Q

what is the retromammary space made of?

A

connective tissue

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11
Q

what three vessels serve the breast?

A

intercostals
internal thoracic
axillary artery

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12
Q

what two nerve sets supply the bereats?

A

intercostal nerves and parts of the cervical plexus

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13
Q

what nodes do most of breast drain into?

A

axillary nodes

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14
Q

medial breast tissue drains into what nodes?

A

parasternal nodes

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15
Q

lymph from inferior breast can go into what nodes?

A

abdominal nodes

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16
Q

name the five divisions of the axillary nodes

A 
pectoral
humeral
subscapular
central
apical
17
Q

which of the five axillary node divisions receives most of lymph from breast/

A

pectoral

18
Q

what are the three levels of nodal involvement of breast cancer?

A

level 1,2,3

19
Q

where is level 1 breast nodal involvement?

A

lateral to pec minor

20
Q

where is level 2 breast nodal involvement?

A

at pec minor

21
Q

where is level 3 breast nodal involvement?

A

medial to pec minor

22
Q

what level of nodAL involvement is worst?

A

level 3

23
Q

active mammary glands are enlarged due to what?

A

development of alveoli

24
Q

what cells line the alveoli of active mammary glands?

A

alveolar or secretory cells

25
Q

what is present in alveolar cells?

A

lipid droplets

26
Q

what is present in vesicles of alveolar cells?

A

milk proteins and lactose

27
Q

how are lipid droplets released from alveolar cells?

A

apocrine secretion

28
Q

how are milk proteins released from alveolar cells

A

merocrine exocytosis

29
Q

what are the two secretions of mammary glands?

A

colostrum

milk

30
Q

what are contents of colostrum?

A

protein rich yellowish fluid containng lymphocytes monocytes and fat soluble vitamins and IgA

31
Q

what is in milk?

A

proteins, lactose and lipids

32
Q

what is release first colostrum or milk?

A

colostrum

33
Q

when is colostrum released?

A

in first 3-4 days

34
Q

when is milk started to be released?

A

at day 3-4 post birth

Repro Week 2 (9 decks)

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