What do you mean by external bleeding and wbc in detail
Answers
Answer:
White blood cell, also called leukocyte or white corpuscle, a cellular component of the blood that lacks hemoglobin, has a nucleus, is capable of motility, and defends the body against infection and disease by ingesting foreign materials and cellular debris, by destroying infectious agents and cancer cells, or by producing antibodies.
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Explanation:
External bleeding happens when blood exits through a break in the skin. Blood loss from bleeding tissue can also be apparent when blood exits through a natural opening in the body, such as the: mouth
three types of external bleeding are
Arterial
With this type of bleeding, the blood is typically bright red to yellowish in colour, due to the high degree of oxygenation. A wound to a major artery could result in blood ‘spurting’ in time with the heartbeat, several meters and the blood volume will rapidly reduce.
Venous
This blood is flowing from a damaged vein. As a result, it is blackish in colour (due to the lack of oxygen it transports) and flows in a steady manner. Caution is still indicated: while the blood loss may not be arterial, it can still be quite substantial, and can occur with surprising speed without intervention.
Capillary
Bleeding from capillaries occurs in all wounds. Although the flow may appear fast at first, blood loss is usually slight and is easily controlled. Bleeding from a capillary could be described as a ‘trickle’ of blood.
The key first aid treatment for all of these types of bleeding is direct pressure over the wound.
White blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders. All white blood cells are produced and derived from multipotent cells in the bone marrow known as hematopoietic stem cells. Leukocytes are found throughout the body, including the blood and lymphatic system.[1]