A group of lymphatic nodes located in the cervical area, which filter lymph from the head and neck. Function: filtering lymph from infections, tumors, and other anomalies, providing immune protection for the head and neck. Interesting fact: Cervical lymph nodes are one of the first places to which cancer cells may migrate in cases of head and neck cancer.

A lymphatic organ in the throat, involved in protecting the body from infections entering through the mouth and nose. Function: protection from viruses and bacteria, induction of immune response, filtration and destruction of microorganisms. Interesting fact: Tonsils can sometimes become sites of infections, such as tonsillitis, and require surgical removal, but they also play an important role in body defense.

An immune system organ where T lymphocytes mature, vital for adaptive immunity. Function: training and differentiating T lymphocytes, forming immune tolerance, and protection against autoimmune diseases. Interesting fact: The thymus plays a key role in the development of the immune system, but its size and activity decrease with age, which can impair immune function.

Lymph nodes located in the axillary area, filtering lymph from the upper limbs and upper part of the torso. Function: filtering lymph from infections, tumors, and other anomalies, providing immune protection for the upper part of the body. Interesting fact: Axillary lymph nodes may enlarge due to infections or tumors in the chest and upper limbs, helping the body fight potential threats.

An organ involved in filtering blood, destroying old erythrocytes, and producing lymphocytes. Function: filtering blood from microorganisms, antigens, and old erythrocytes; storing blood; participating in immune response. Interesting fact: The spleen is the largest lymphatic organ in the body and plays a vital role in removing old and damaged blood cells.

A group of lymph nodes located in the groin area, responsible for filtering lymph from the lower limbs. Function: filtering lymph from infections, tumors, and other anomalies, providing immune protection for the lower part of the body. Interesting fact: Inguinal lymph nodes can be sensitive during infections or inflammations in the lower body area, and their enlargement can indicate a problem.

Lymph nodes in the area under the knee, playing a role in filtering lymph from the leg. Function: filtering lymph from infections, tumors, and other anomalies, providing immune protection for the leg and foot. Interesting fact: Popliteal lymph nodes often become palpable during palpation of the area behind the knee and may enlarge due to infections or inflammations in the leg.