File Name: anatomy and physiology of breast .zip
A mammary gland is an exocrine gland in humans and other mammals that produces milk to feed young offspring.
The breast is an organ whose structure reflects its special function: the production of milk for lactation breast feeding. The epithelial component of the tissue consists of lobules , where milk is made, which connect to ducts that lead out to the nipple.
The Who, What, Where, When and Sometimes, Why.
Breasts are made up of fat and breast tissue, along with nerves, veins, arteries and connective tissue that helps hold everything in place. The main chest muscle the pectoralis muscle is found between the breast and the ribs in the chest wall. Image source: National Cancer Institute www. Breast tissue is a complex network of lobules small round sacs that produce milk and ducts canals that carry milk from the lobules to the nipple openings during breastfeeding in a pattern that looks like bunches of grapes. During puberty, hormones produced by the ovaries and pituitary gland a part of the brain that controls growth and other glands in the body cause the breasts to grow. This causes the milk ducts to stretch out and become more branched. Adult women have lobes in each breast [ 1 ].
If your institution subscribes to this resource, and you don't have a MyAccess Profile, please contact your library's reference desk for information on how to gain access to this resource from off-campus. Please consult the latest official manual style if you have any questions regarding the format accuracy. The mammary gland is a distinguishing feature of mammals and its primary role is to produce milk to nourish offspring Figures 1. In humans, the breast has a multitude of further roles including being a major female sexual characteristic and a key part of female body image. Breast anatomy.
Development. In the 5-week-old human fetus, an ectodermal 'milk streak'dthe mammary ridgeddevelops along the trunk on either side from the axilla to the groin.
Anatomy and Physiology of the Breast
The breasts are paired structures located on the anterior thoracic wall, in the pectoral region. They are present in both males and females, yet are more prominent in females following puberty. In females, the breasts contain the mammary glands — an accessory gland of the female reproductive system. The mammary glands are the key structures involved in lactation.
Lactation is the process by which milk is synthesized and secreted from the mammary glands of the postpartum female breast in response to an infant sucking at the nipple.
Панк брезгливо ее пожал. - Проваливал бы ты, пидор. Беккер убрал руку.
Фонтейн понимал, что сейчас не время для объяснении. Он бросил взгляд на истончающиеся защитные щиты.