Clubbing is a clinical finding characterized by bulbous fusiform enlargement of the distal portion of a digit (see the image below). Clubbed fingernail. When the profile of the distal digit is viewed, the angle made by the proximal nail fold and nail plate (Lovibond angle) typically is less than or equal to 160Â°. In clubbing, the angle flattens out and increases as the severity of the clubbing increases. If the angle is greater than 180Â°, definitive clubbing exists.
The white blood cells or lymphocytes produced by these lymph nodes kill bacteria and viruses entering the body. Lymph nodes are very small organs, only about 1-2 cm in size and are found as a network throughout the body.hat Are Lymph Node, Locations And Diseases. Humans generally have immunity against pathogens and accidental infections that is owed to the presence of lymph nodes which form a part of the lymphatic system. They behave like mechanical filters and kill and eliminate microbes present in the blood stream.
Antigens are chemicals on the surface of a cell. All cells have these. The immune system checks cells and identifies them as self or non-self. Antibodies are proteins produced by certain lymphocytes in response to a specific antigen.B-lymphocytes and T-lymphocytes produce the antibodies. B-lymphocytes become plasma cells which then generate antibodies. T-lymphocytes attack cells which bear antigens they recognize.one marrow contains tissue that produces lymphocytes. B-lymphocytes (B-cells) mature in the bone marrow. T-lymphocytes (T-cells) mature in the thymus gland. Other blood cells such as monocytes and leukocytes are produced in the bone marrow.