Walker is a German surname derived from either a fuller, from the Middle High German walker, meaning a fuller of cloth, or an officer whose duty consisted of walking or inspecting a certain part of a forest. The surname Walker was first found in Germany where records of the name date back to the thirteenth century. In 1253, Sigelo dictus Welkere was recorded in Weissenburg, and in 1209, Bruno Welkiner was a citizen of Cologne. The name is also found within African Kenyan tribes. With close t
Lymph is a fluid which bathes all the cells of the body. It is also called ICF (Intercellular fluid). This is made up of mostly fluid that escapes from the blood through the walls of the capillaries. Tiny, lymphatic capillaries are found in all tissues of the body. These join to form lymph vessels which are thin walled vessels that also contain valves to prevent backflow. Eventually, all lymph returns to the circulatory system through various ducts that empty into large veins below the neck. In this way, fluid that is lost through the capillary is returned to the blood. At intervals along the lymph vessels, there are bead-like enlargements called lymph nodes.
Lymphatic vessels carry a clear fluid called lymph, which bathes the tissues of the body, and also serves as a transport network for immune cells. Lymph nodes are small lumps of tissue which are dotted along the lymphatic system.