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The spleen of horses stores roughly 30 percent of the red blood cells and can release them when needed. [20] In humans, up to a cup (240 ml) of red blood cells is held within the spleen and released in cases of hypovolemia [21] and hypoxia. [22] It can store platelets in case of an emergency and also clears old platelets from the circulation.
An image of the spleen in the human body. Also shows the red and white pulp regions. Splenocytes are spleen cells and consist of leukocytes like B and T cells, dendritic cells, and macrophages. [2] The spleen is split into red and white pulp regions with the marginal zone separating the two areas. The red pulp is involved with filtering blood ...
The largest lymphatic organ is the spleen, which is dark purple and located under the lower ribs, around the left side of the upper abdomen. [11] [12] It filters the red blood cells by extracting old cells. [11] [12] Coming off the side of the cecum (the tiny tail piece) is the appendix. It is a small organ attached to the large intestine in ...
The anatomy of the human urinary system differs between males and females at the level of the urinary bladder. In males, the urethra begins at the internal urethral orifice in the trigone of the bladder, continues through the external urethral orifice, and then becomes the prostatic, membranous, bulbar, and penile urethra.
In gross anatomy, the bladder can be divided into a broad fundus (base), a body, an apex, and a neck. [5] The apex (also called the vertex) is directed forward toward the upper part of the pubic symphysis, and from there the median umbilical ligament continues upward on the back of the anterior abdominal wall to the umbilicus.
The solid organs are the liver, pancreas, spleen, kidneys, and adrenal glands. The hollow organs of the abdomen are the stomach, intestines, gallbladder, bladder, and rectum. [6] In the thoracic cavity, the heart is a hollow, muscular organ. [7] Splanchnology is the study of the viscera. [8]
The bladder is a hollow balloon shaped organ located in the pelvis. It stores urine until the brain signals it to relax the urinary sphincter and release the urine into the urethra starting urination. [54] A normal bladder can hold up to 16 ounces (half a liter) for 3–5 hours comfortably.
The cords of Billroth (also known as splenic cords or red pulp cords) are found in the red pulp of the spleen between the sinusoids, consisting of fibrils and connective tissue cells with a large population of monocytes and macrophages.