2023年11月3日 · As the spleen stores a significant amount of blood, the contraction of myoepithelial cells pumps stored blood into the circulatory system when the body is in need; for example during intense physical activity or massive hemorrhage. The …

2024年4月16日 · The spleen is an organ located in the upper left abdomen, and is roughly the size of a clenched fist. In the adult, the spleen functions mainly as a blood filter, removing old red blood cells. It also plays a role in both cell-mediated and humoral immune responses.

Both the short gastric arteries and the splenic artery supply it with blood. [15] The germinal centers are supplied by arterioles called penicilliary radicles. [16] The spleen is innervated by the splenic plexus, which connects a branch of the celiac ganglia to the vagus nerve.

2023年7月24日 · Upon approaching the spleen, the splenic artery divides into 5 branches which supply blood to different regions of the organ. The result of this is vascular segmentation of the spleen as the 5 sub-branches do not anastomose.

2021年4月29日 · The spleen stores and filters blood and makes white blood cells that protect you from infection. Many diseases and conditions can affect how the spleen works. A ruptured (torn) spleen can be fatal.

2023年5月1日 · The spleen is supplied by blood from the splenic artery (branching off of the celiac trunk) and drained by the splenic vein (uniting with the superior mesenteric vein to form the hepatic portal vein).

2025年1月22日 · Blood Supply. The spleen is highly vascular and relies on an extensive network of blood vessels to carry out its functions of filtering blood and supporting immune responses. Splenic Artery. The splenic artery is a major branch of the celiac trunk and supplies oxygenated blood to the spleen.

2024年5月18日 · It functions in blood filtration, removing old red blood cells, and recycling iron. The spleen plays a critical role in the immune system, housing white blood cells that produce antibodies. It acts as a reservoir for blood, platelets, and monocytes, releasing them during hemorrhage or infection.

Blood leaves the spleen through the splenic vein, which drains into a larger vein (the portal vein) that carries the blood to the liver. The spleen has a covering of fibrous tissue (the splenic capsule) that supports its blood vessels and lymphatic vessels.

The main arterial blood supply to the spleen is from the celiac axis through the splenic artery. Its course is variable along the upper border of the body and tail of the pancreas. The location and number of branches of the main splenic artery into segmental arteries is inconstant as well.