What is the anatomy of breast?
The lobes, lobules, and bulbs are all linked by thin tubes called ducts. These ducts lead to the nipple in the center of a dark area of skin called the areola. Fat fills the spaces between lobules and ducts. There are no muscles in the breast, but muscles lie under each breast and cover the ribs.
What are the 3 layers of the breast?
Sonographically, the breast is divided into three layers located between the skin and the pectoralis major muscle on the anterior of the chest wall. These layers are the subcutaneous layer, the mammary (glandular) layer, and the retromammary layer ( Figure 21-2 and Box 21-1 ).
What are the functions of breast?
Namely, the primary biological function of the breast is to produce milk to feed infants. However, the breast can also be a symbol of femininity and play a role in sexual attraction and pleasure. Breast cancer is a type of cancer that begins in the breast.
What is glandular breast tissue?
Glandular tissue is the part of the breast that makes milk, called the lobes. The tubes that carry milk to the nipple are called ducts. Together, fibrous and glandular tissue are called fibroglandular tissue. Fatty tissue fills the space between the fibrous tissue, lobes, and ducts.
Where is breast tissue located?
Anatomically, the adult breast sits atop the pectoralis muscle (the “pec” chest muscle), which is atop the ribcage. The breast tissue extends horizontally (side-to-side) from the edge of the sternum (the firm flat bone in the middle of the chest) out to the midaxillary line (the center of the axilla, or underarm).
What is the tail of Spence?
The axillary tail of Spence, variable in size, is a narrow part of the mammary gland that extends to the axilla. Breast tissue and lymph nodes can be found in the axillary tail region.
Where is the tail of breast?
All breasts also contain fibrous and fatty tissue. Some breast tissue extends into the armpit (axilla). This is known as the axillary tail of the breast.
What is the line between breasts called?
The intermammary cleft or intermammary sulcus or sulcus intermammarius is a surface feature of males and females that marks the division of the two breasts with the sternum (breastbone) in the middle.
Are male and female breasts the same?
Both males and females have breasts. The structure of the male breast is nearly identical to that of the female breast, except that the male breast tissue lacks the specialized lobules, as there is no physiologic need for milk production by the male breast.
Where is the posterior part of the breast?
The mammary tissue also extends variably into the axilla as the glan- dular Tail of Spence. The posterior surface of the breast rests on portions of the fasciae of the pectoralis major, serratus anterior, external abdominal oblique, and rectus abdominis muscles. of the pectoralis fascia and a layer of muscle as well.
What is the breast anatomy PPT diagram?
The Breast Anatomy PPT Diagram comes with a single, fully editable PowerPoint slide that can be altered as you wish. It features a detailed diagram of all of the different parts of the breast and the surrounding areas.
Where is the breast tissue located in the body?
Breast anatomy Anatomy The mature breast lies cushioned in adipose tissue between the subcutaneous fat layer and the superficial pectoral fascia . – PowerPoint PPT presentation
How many lobes of the breast are there?
Anatomy – Anatomy The breast is composed of 15 20 lobes, which are each composed of several lobules. Each lobe of the breast terminates in a major (lactiferous) duct (2 4 | PowerPoint PPT presentation | free to view
What is the size of the breast determined by?
The size of the breast is determined by the quantity of adipose tissue. THE FEMALE REPRODUCTIVE SYSTEM Exercise 31 … not occur, the corpus luteum degenerates, within 2 weeks into a mass of scar tissue called the corpus albicans GROSS ANATOMY The ovaries are solid, ovoid structures, about 2 cm in length and 1 cm in width. …