Question

Which organ known as "Blood bank":
A. Heart
B. Liver
C. Spleen
D. Kidney

Answer 1

Hint: An organ that holds the reserve of blood in case of hemorrhagic shock. It is the largest lymphatic organ that acts as an emergency blood bank for our body and also helps remove debris from the bloodstream.

Complete answer:
The spleen is defined as a large, bean shaped, vascular , dark red organ that is located in the abdomen just below the diaphragm at the tail of the pancreas and behind the stomach. Spleen is the largest component of the lymphatic system and serves various functions. One of its main functions is that it acts as a reservoir of the red corpuscles due to this spleen is known as the blood bank of our body. When the animal is at rest, and needs less oxygen due to slow metabolism , some of the red corpuscles are withdrawn from circulation and then these corpuscles are stored in the spleen. During active life, when the animal requires more oxygen , also in case of haemorrhage, the stored red corpuscles are released into the bloodstream.
Some of the other important functions of spleen are: 1. Helps in the Clearance of microorganisms and particulate antigens from the bloodstream. 2. Synthesis of immunoglobulin G (IgG), properdin (an essential component of the alternate pathway of complement activation), and tuftsin (an immunostimulatory tetrapeptide) 3. It plays a role in the Removal of abnormal red blood cells (RBCs)

Hence the correct answer is OPTION(C)

Note: The spleen increases in size in order to store blood. The organ can widen or narrow, depending on the body's needs. At its largest, the spleen can hold up to a cup of reserve blood