Follicle

A follicle (from the Latin folliculus - sac) is a small secretory cavity, sac or gland.

The most famous example of a follicle is the ovarian follicle - the sac in which the egg matures in women. Every month, another follicle matures in the ovary, from which an egg is released during ovulation.

Another example of a follicle is a hair follicle, which is the structure of the skin from which hair grows. The hair follicle consists of an inner part containing the hair root and an outer sheath.

Thus, follicle is a general name for various sacs and glandular structures in the body involved in the production of secretions or other substances.

Follicles are small secretory cavities, sacs or glands that can be found in various organs and tissues of the body. One of the best known examples of a follicle is the ovary in women, where it plays an important role in the development of eggs.

The ovary is made up of many follicles, each containing an immature egg that goes through a series of changes and matures during the menstrual cycle. At the beginning of the cycle, one or more follicles begin to grow and develop until they reach a certain stage of maturity. This process is called folliculogenesis and is a key point in a woman's menstrual cycle.

However, follicles are present not only in the ovaries, but also in other organs such as the skin, lungs, liver and kidneys. In the skin, for example, follicles are where hair growth occurs, and in the lungs they are small sacs that contain mucous secretions needed to protect the lungs from infections and other damage.

Additionally, follicles can be found in various glands such as the thyroid and pancreas. In the thyroid gland, follicles produce hormones that regulate metabolism and tissue growth in the body, and in the pancreas they are involved in the production of insulin.

The study of follicles is important for understanding the normal functioning of organs and tissues, as well as for identifying and treating various diseases. For example, in ovarian cancer, tumors can develop inside the follicles and cause symptoms such as abdominal pain and bleeding.

In general, follicles play an important role in many processes occurring in the body, and their study helps to better understand the functioning of organs and tissues.

Follicles are small secretory cavities, sacs or glands in humans or animals, formed from embryonic follicles and containing various secretory products.

Follicles associated with the tissue of the serous membranes of the human body are called botrychial glands, or Sertoli follicles. In Latin they are called folliculus testicularis. They are sacs filled with secretions, consisting of glandular cells that produce glycoprotein fiber. The fluid they produce introduces a number of chemicals into the cells through the spermatogenic pathways. These include hormones and prostaglandins that affect the male reproductive system,