Breast Anatomy

18문장 94% 일본어 번역 1명 참여 출처 : 칸아카데미
0 영상보기
영어 to
일본어
2단 보기 1단 보기
번역 0%

Breast Anatomy발음듣기

다른 번역문 등록

Let's draw a diagram of the human breast and talk about some of the amazing functions of this organ.발음듣기

다른 번역문 등록

Now, the human breasts in both males and females contains mammary glands.발음듣기

다른 번역문 등록

And in females, around the time of puberty, these mammary glands develop; in males, they usually remain remain undeveloped and the main function of this gland, I'll just write in the name over here, these are called the mammary glands.발음듣기

다른 번역문 등록

Mammary glands, and the main function of this gland is to secrete milk to nourish the human infant.발음듣기

다른 번역문 등록

Now these mammary glands, each of them drains towards the nipple by a little duct called the lactiferous duct and I remember I was expecting my first baby and I remembered thinking, "Where is the milk gonna come out from? I don't see a hole there!"발음듣기

다른 번역문 등록

And the answer is, there isn't a single hole there.발음듣기

다른 번역문 등록

Many tiny holes that are so small you can't actually see them with the naked eye.발음듣기

다른 번역문 등록

And so these lactiferous ducts, and I'll just label them for you here, these are the lactiferous ducts and the lactiferous ducts empty, or drain, towards the nipple and towards that darker area of skin that we see when we look at the human breast and that area of skin is called the areola.발음듣기

다른 번역문 등록

And the reason the areola exist is because when the newborn first comes out, areola, the newborns actually don't see very well and in order to help them find their source of food, we have this darkened area of the breast that actually gets quite a bit darker during pregnancy.발음듣기

다른 번역문 등록

Ok, so now these mammary glands are lined with what we called myoepithelial cells and let me just break down that word for you. "Myo" is-is a prefix that we use when we're talking about anything that has to do with muscles. or anything that contracts.발음듣기

다른 번역문 등록

So these are we know contractile cells and they're also epithelial cells and epithelial cells in the body are the cells that line things.발음듣기

다른 번역문 등록

So these cells, these red ones, these myoepithelial cells are cells that both line the mammary glands and have the ability to contract, to eject the milk out through the lactiferous ducts.발음듣기

다른 번역문 등록

Now all of these structures are supported by quite a bit of connective tissue and we're usually talking about in the breast.발음듣기

다른 번역문 등록

The main ones are collagen and elastin collagen... and... elastin And all of these connective tissue kind of this connective tissues framework, comes together in these ligaments, strong ligaments, that anchor the breasts to the chest wall and these ligaments are called Cooper's ligaments. Cooper's... ligaments.발음듣기

다른 번역문 등록

In medical school, we used to remember this by saying the phrase, "Cooper's Droopers" but after having had 3 children and breastfed for a long time, I don't think that's so funny anymore.발음듣기

다른 번역문 등록

Anyway, the only other thing in the breast that makes it kind of a soft and squishy organ is the adipose tissue that also sort of forms part of the framework or the structure and supports actually all of the glands along with the connective tissue, the collagen and elastin.발음듣기

다른 번역문 등록

So this is our adipose tissue adipose... and, we'll see in our next video what happens how the body knows when to cause the these myoepithelial cells to contract, to eject the milk out of the mammary glands.발음듣기

다른 번역문 등록

칸아카데미 더보기더 보기

전체보기
Top