Lymph nodes
Lymph nodes are small, soft and soft circular or elliptical structures that are distributed throughout the body and are interconnected in the form of lymphatic chains that are connected to each other through channels similar to the blood vessels. Each lymph node is encased in a capsule of tissue In addition, each capsule has multiple types of lymphocytes, which produce proteins that fight viruses and other microbes and destroy harmful substances that have been captured.
Where are the lymph nodes located?
Lymph nodes are present in most areas of the body, except the brain area, but are concentrated mainly in the neck, underarms and thighs. Some of them are close to the surface of the skin and the other part is deep inside the body. Even the lymph nodes located near the surface are not visible to the eye or concrete. Unless swollen or enlarged swollen, distributed across the lymph vessels in all regions of the body to function in the basic function of blood purification of impurities, in addition to its primary role in maintaining the immunity of the body to eventually pour fluids in the veins in the body.
The lymph nodes are divided into more than one area. The first group is the cervical lymph nodes, located in the neck and neck. It extends from under the earlobe to the lower neck and the front of the shoulder. This place contains a large number of lymph nodes that may exceed 300 Node, the second group is the axillary lymph nodes, the third type are the lymph nodes of the inguinal, concentrated in the thigh area, some deep and others close to the surface.
Function of lymph nodes
The function of the lymph nodes can be summed up in preserving the immunity of the body by protecting the body from viruses, various types of bacteria, fungi and other infectious organisms. It also plays a role in the absorption of fat and proteins in the intestine. It also transmits lymphatic fluids, red blood cells and white blood and tissues. Circulation, as it transfers nutrients and excludes extracellular waste.
The lymph nodes are too small to be seen unless they swell and swell; they become a small, finger-shaped hill. These glands often swell due to sore throat or in the ear or swelling due to viral, bacterial or parasitic infections, Some types of fungus, presence of cancers in neighboring areas, rheumatoid arthritis, or colds.