Except at the hilum, the surface of the spleen is covered by a layer of visceral peri­toneum (= serous coat). Synonym Discussion of spleen. Definition. It is located on the left side of the abdomen near the stomach . The spleen makes lymphocytes, filters the blood, stores blood cells, and destroys old blood cells.

The hitherto largely unsolved problem with a biological definition of spleen versus lymph node seems possible to solve from a phylogenetic point of view.

Inside, the mass of splenic tissue is of two types, the red pulp and the white pulp, which do not separate into regions but intermingle and are distributed throughout the spleen.

Spleen Definition The spleen is a small organ, typically located on the left side of the body, behind the ribcage and stomach. Anatomically, the edge of a normal spleen shaped flat. The spleen is a secondary lymphoid organ.

The spleen reaches peak development at puberty, in rats, followed by gradual involution (Losco, 1992). Lymph reenters the cardiovascular system at subclavian veins situated near the neck.

A network of lymph ducts is present throughout the body.

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1983. Your spleen is a fist-sized organ that helps your body fight infections.

2. The spleen is an immune system organ.. Function of the spleen.

Spleen has an oval shape, with a length of approximately 12 cm (5 inches), a width of 7 cm and 4 cm tall, and weighs about 150 g. Spleen normally can not be in touch except when there is enlargement of the spleen (spleenomegali). The spleen is a large, encapsulated, bean-shaped organ that is situated on the left side of the body below the diaphragm.

It creates a one-directional flow of lymph towards the heart. Spleen: An organ that is located in the upper-left part of the abdomen, not far from the stomach, that produces lymphocytes, which are important elements in the immune system.

home >> biology >> dictionary The spleen is an organ found in all vertebrate animals with important roles in regard to red blood cells and the immune system In humans, it is located in the left upper quadrant of the abdomen. The lymphatic system is a network of low-pressure vessels which provide a route for the return of interstitial fluid to the blood vascular network. The trabecu­lae arise from the capsule that extend into the substance of the spleen. [] spleen ductless, vascular organ near the stomach Source: Noland, George B.

The spleen is encased in a thick connective-tissue capsule.

The spleen is an organ found in all vertebrate animals with important roles in regard to red blood cells and the immune system In humans, it is located in the left upper quadrant of the abdomen. spleen (splēn) n. 1. a.

The spleen contains T and B lymphocytes as well as many phagocytes and is a major component of the mononuclear phagocyte system.

Blood leaves the spleen through the splenic vein, which drains into a larger vein (the portal vein) that carries the blood to the liver. It is the largest organ in the body’s lymphatic system , which is responsible for promoting immune function, filtering the blood , and managing blood volume.

It is located on the left side of the abdomen near the stomach.

A large, highly vascular lymphoid organ, located in the human body to the left of the stomach below the diaphragm, that serves as a reservoir for blood, destroys old red blood cells, and contains lymphocytes that combat blood-borne antigens.

The spleen, a spongy, soft organ about as big as a person’s fist, is located in the upper left part of the abdomen, just under the rib cage. Thus, it is suggested that the spleen be defined as a hemopoietic organ which is able to filter blood with sinusoids. In other words, it contributes to the immune response but is not involved in the synthesis or maturation of immune cells..