Diagrams of breast-Breast Anatomy | Cleveland Clinic

The breasts are specialised organs, which are located on the anterior chest wall. There are lots of glands in our breasts, which grow and develop during puberty and maturation. Female hormones such as oestrogen and progesterone are important in promoting growth and changes that occur in the breast, especially during pregnancy and the menstrual cycle. Lying in a superficial layer of our skin above our chest muscles, the mammary glands in our breast drain via many ducts to our nipples. There is a dark, circular layer around the nipple , called the areola.

Diagrams of breast

Diagrams of breast

Diagrams of breast

Diagrams of breast

Diagrams of breast

Phone Number:. Diagrams of breast my name, email, Dagney cumshot website in this browser for the next time I comment. This is because this area has a lot of glandular tissue. Deep to the areola, each duct has a dilated part called Diagrams of breast lactiferous sinus, in which milk can accumulate and remain in the nursing mother. Breast cancer is a disease in which cells in the breast grow out of control. The kind of breast cancer depends on which cells in the breast turn into cancer. What are you looking for? Fat fills the spaces between the lobes and ducts. Each breast also contains blood vessels and vessels that transport lymph. You have entered an incorrect email address!

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Diagrams of breast your bra harming your health? Papaya, Black walnut - May 27, Papaya seeds kill intestinal parasites. Young mothers with metastatic breast cancer may find it difficult to manage treatments and appointments while also taking care of their kids. The presence of sweat glands is a Diagrams of breast characteristic for mammals. Diagrmas you take vitamin D, be sure it is in a complex with calcium, magnesium and zinc. Inverted nipples are often harmless with no serious underlying cause. Alt Bgeast Rev. What are the causes of changes in the skin of the breast? Diagrams of breast actions desensitize or sensitize receptors, and increase a bodily response. Mulungu has to be stepped in boiling water for Amateur fuck sexy for it to be effective. Breast problems are very common in women of all ages. Estrogen imbalance - March 16, Recent updates - February 20, Receptor Regulation - February 20, archive - June 04, archive - December 31, archive - December 31, archive - December 31, Goyal A ; Breast pain. Lactiferous ducts are known by Diagrams of breast names, including milk ducts, mammary ducts, and galactophores. The glands and ducts of the female breast are similar to sweat glands.

Click to see larger diagrams of the anterior view and cross-section view of the breast.

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  • The presence of sweat glands is a distinguishing characteristic for mammals.

The breasts contain mammary glands. Only the mammary glands in women can make milk to feed a baby. For this reason, the breasts are accessory organs of the female reproductive system. The breasts are divided by an invisible line running up and down and right to left through the nipple.

Each of these 4 regions is called a quadrant. This is because this area has a lot of glandular tissue. Each breast lies over a large muscle called the pectoralis major muscle on the chest. The breast covers a fairly large area. It goes from just below the collarbone called the clavicle to the armpit called the axilla and across to the breastbone called the sternum.

Ligaments are dense bands of connective tissue that support the breast. They run from the skin through the breast and attach to muscles on the chest. Lobules are the groups of glands that make milk. There are 15—25 lobules in each breast. The nipple is the area at the centre of the areola with an opening to release milk. The nipples contain muscle fibres.

When these muscle fibres contract, the nipple becomes erect, or pointed outward. The areola is the pink or brown, circular area around the nipple on the surface of the breast. It contains small glands that release, or secrete, an oily substance that acts as a lubricant for the nipple and areola. The breast has many blood vessels and lymph vessels. Lymph vessels are thin tubes similar to blood vessels. They collect and move lymph fluid away from the breast into small bean-shaped masses of lymphatic tissue called lymph nodes around the breast.

The lymph vessels and lymph nodes are part of the lymphatic system , which helps fight infections. There are several groups of lymph nodes that drain each breast. These groups of lymph nodes are found on both sides of the body.

The internal mammary lymph nodes are inside the chest around the breastbone called sternum. The axillary lymph nodes are under the arm called the axilla. There are about 30—50 lymph nodes in the axilla. They are divided into 3 levels based on how close they are to the large muscle of the chest called the pectoralis major. Level I, or low axilla, are along the outer border of the muscle under the pectoralis major called the pectoralis minor Level II, or mid axilla, are beneath the pectoralis minor.

Level III, or high axilla, are along the inner border of the pectoralis minor. Breasts start to grow during puberty, which usually takes place between 10 and 12 years of age. At this time, the breasts respond to hormonal changes in the body. These changes include higher estrogen and progesterone levels in the body. The breasts start to build up fat and the ducts begin to grow and branch. The glands of the breast also start to develop during puberty.

The breast skin stretches as the breasts grow, creating a rounded appearance. As a woman ages, much of the gland and duct tissues are replaced with fat.

This makes the breasts less dense. Ligaments also lose their elasticity as a woman ages, which causes the breasts to change shape and lose some of their fullness. The size depends on the amount of fat in the breast. One breast is usually slightly larger or smaller, higher or lower or shaped differently than the other.

Estrogen and progesterone cause changes to the breast tissues each menstrual cycle. In the first part of the menstrual cycle, estrogen stimulates the milk ducts to make them grow. It stimulates the glands in the lobules so they are ready to make milk if a woman becomes pregnant. The ducts carry the milk to the nipple. Milk passes from the nipple to the baby during breast-feeding.

Estrogen is the main female hormone. It influences female sexual characteristics, such as breast development, and it is necessary for reproduction. Progesterone is the other female sex hormone made in the ovaries.

Its role is to prepare the uterus, or womb, for pregnancy during each menstrual cycle. Progesterone also plays a role in completing the development of the mammary glands during pregnancy so they can make milk after childbirth.

The lymphatic system includes the adenoids, tonsils, spleen, thymus, lymph nodes, lymph vessels and bone marrow. Call us toll-free at Or write us. We will reply by email or phone if you leave us your details. If we are not able to reach you by phone, we will leave a voicemail message.

Discover how you can help reduce the burden of cancer. Select the text below and copy the link. Structure Each breast lies over a large muscle called the pectoralis major muscle on the chest. Parts of the breast The breast is made up of fat, connective tissue, glands and ducts.

Ducts are tubes that carry milk from the lobules to the nipple. The lymphatic system of the breast The breast has many blood vessels and lymph vessels. The supraclavicular lymph nodes are above the collarbone. The infraclavicular, or subclavicular, lymph nodes are below the collarbone. Breast development in women Breasts start to grow during puberty, which usually takes place between 10 and 12 years of age.

Breast changes during menstruation and menopause Estrogen and progesterone cause changes to the breast tissues each menstrual cycle. Hormones and the breast Estrogen is the main female hormone. Also called the lymph system. First name:. Last name:. Email address:. Phone Number:.

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The plug is made of keratin , a structural protein that is the key component to skin, hair, and nails. Studies have not shown that breast self-exams alone reduce the number of deaths from breast cancer. Lactiferous ducts are known by many names, including milk ducts, mammary ducts, and galactophores. Check for fluid when nipples are squeezed. The tumor is between 2 and 5 centimeters three-quarters of an inch to 2 inches.

Diagrams of breast

Diagrams of breast

Diagrams of breast

Diagrams of breast

Diagrams of breast

Diagrams of breast. What problems can occur?

The cancer has spread to other parts of the body. The cancer has spread to the lymph nodes under the arm. The tumor is between 2 and 5 centimeters three-quarters of an inch to 2 inches. The cancer has not spread to the lymph nodes under the arm.

The cancer has spread to the lymph nodes under the arm The tumor is larger than 5 centimeters 2 inches. Cancer cells have not spread beyond the breast. These abnormal cells may become cancer and spread into nearby normal tissue. It has spread in one of the following ways: The cancer has spread to the lymph nodes behind the breastbone and under the arm. Studies have not shown that breast self-exams alone reduce the number of deaths from breast cancer. What to look for: Looks for differences in size or shape between your breasts.

The skin of your breasts is checked for a rash, dimpling, or other abnormal signs. Check for fluid when nipples are squeezed. Using the pads of the fingers to feel for lumps checks your entire breast, underarm, and collarbone area. Checks the lymph nodes near the breast to see if they are enlarged Source: National Cancer Institute, U. National Institutes of Health.

Primary breast cancer | Breast Cancer Now

Click to see larger diagrams of the anterior view and cross-section view of the breast. Breast cancer is a disease in which cells in the breast grow out of control. There are different kinds of breast cancer. The kind of breast cancer depends on which cells in the breast turn into cancer.

Breast cancer can begin in different parts of the breast. A breast is made up of three main parts: lobules, ducts, and connective tissue. The lobules are the glands that produce milk. The ducts are tubes that carry milk to the nipple. The connective tissue which consists of fibrous and fatty tissue surrounds and holds everything together. Breast cancer can spread outside the breast through blood vessels and lymph vessels.

When breast cancer spreads to other parts of the body, it is said to have metastasized. Ductal carcinoma in situ DCIS is a breast disease that may lead to breast cancer. The cancer cells are only in the lining of the ducts, and have not spread to other tissues in the breast. Breast Cancer. Section Navigation. What Is Breast Cancer? Minus Related Pages.

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Diagrams of breast

Diagrams of breast

Diagrams of breast