Breast: Difference between revisions

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Men (and male mammals) also have breasts; these breasts are built the same way than those of women; Men can't use their breast for breastfeeding though, as their breasts will usually not produce milk.<ref>It is possible that male breasts produce milk. This is rather rare though. Most often it is because of certain medical treatments that use [[hormone]]s</ref>
Men (and male mammals) also have breasts; these breasts are built the same way than those of women; Men can't use their breast for breastfeeding though, as their breasts will usually not produce milk.<ref>It is possible that male breasts produce milk. This is rather rare though. Most often it is because of certain medical treatments that use [[hormone]]s</ref>


== Growth and form==
Y R U READING THESE THINGS!!!!
Breasts in young girls are flat. When they become [[teenager]]s they go through [[puberty]]. One thing that happens during puberty is the breasts grow. During the teenagers growing process the breast tend to hurt around the [[nipple]] area. If the teen is small it will hurt more because the skin has to stretch and the blood has to flow to the breast.
STOP READING AND GO AWAY!!! U DON'T NEED TO NO THE TINGS THAT USED TO B HERE!!!!!


The appearance (general form) of the breasts of a woman vary. There are different forms and sizes. The form and size of a breast are influenced by [[gene]]tic factors, and the amount of [[fat]]ty and [[connective tissue]]. [[Hormone]]s also play a role.


Sometimes the two breasts are not equal in size, one may be larger than the other.{{fact}} At some point in time, the breasts may start sagging (hanging down). A study showed that this has little to do with breastfeeding. Factors that influence this are the size of the breast (before the first pregancy), the number of pregnancies, the [[body mass index]], [[smoking]] and age.<ref>{{cite web|url=http://www.plasticsurgery.org/media/press_releases/Breastfeeding-Does-Not-Create-Sagging-Breasts.cfm|title=Breastfeeding Does Not Create Sagging Breasts; Study Throws Out Old Wives' Tale}}</ref>




but if ur doing a project or ur dying to no something about these things i can say something about them;

milk comes out of them when a baby is born!!!!!

DUH!!

U SHOULD ALREADY NO THIS!!!!!


== Structure ==
== Structure ==

Revision as of 07:14, 10 November 2008

Close up of the breast of a woman. The part standing out is the nipple, which is erect. The darker ring around the nipple is called Areola
Inside a breast
1 - Chest wall, 2 - Muscles on the chest, 3 - Milk-secreting glands, 4 - Nipple, 5 - Areola, 6 - Milk duct, 7 - Fat, 8 - Skin
A woman breast-feeding her child; Image done by Mary Cassatt, 1890

The breasts are an important part of the female body. Female mammals use their breasts to feed their children. Women have two breasts. In most places, breasts are private and covered with clothing, but in some places, women are allowed to show breasts in public.

Men (and male mammals) also have breasts; these breasts are built the same way than those of women; Men can't use their breast for breastfeeding though, as their breasts will usually not produce milk.[1]

Growth and form

Breasts in young girls are flat. When they become teenagers they go through puberty. One thing that happens during puberty is the breasts grow. During the teenagers growing process the breast tend to hurt around the nipple area. If the teen is small it will hurt more because the skin has to stretch and the blood has to flow to the breast.

The appearance (general form) of the breasts of a woman vary. There are different forms and sizes. The form and size of a breast are influenced by genetic factors, and the amount of fatty and connective tissue. Hormones also play a role.

Sometimes the two breasts are not equal in size, one may be larger than the other.[source?] At some point in time, the breasts may start sagging (hanging down). A study showed that this has little to do with breastfeeding. Factors that influence this are the size of the breast (before the first pregancy), the number of pregnancies, the body mass index, smoking and age.[2]

Structure

Part of the breast is a gland. This gland makes the milk used by mothers for feeding babies. After a woman has a baby, her breasts make natural milk. When this happens it is called lactation. Feeding babies milk is called breastfeeding or nursing.

Purposes

The breasts of a woman also play a role in human sexual behaviour. They are one of the most visible or obvious female secondary sex characteristics,[3] They play an important role in sexual attraction of partners. They can also give pleasure to the individual. When sexually stimulated, the size of the breast increases, venous patterns across the breasts become more visible, and nipples grow harder. During sexual intercourse it is common practice to press or massage breasts with hands. Breasts are sensitive to touch as they have many nerve endings.[4] Oral stimulation of nipples and breasts is also common. Some women can achieve breast orgasms. In the ancient Indian work the Kama Sutra, marking breasts with nails and biting with teeth are explained as erotic.[5]

References

  1. It is possible that male breasts produce milk. This is rather rare though. Most often it is because of certain medical treatments that use hormones
  2. "Breastfeeding Does Not Create Sagging Breasts; Study Throws Out Old Wives' Tale".
  3. secondary sex characteristics.
  4. "The entire breast is a network of nerve endings" link
  5. Sir Richard Burton's English translation of Kama Sutra

See also