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Transverse section of a portion of the spleen. (Lymphatic nodule labeled at center right.) White pulp is a histological designation for regions of the spleen (named because it appears whiter than the surrounding red pulp on cross section), that encompasses approximately 25% of splenic tissue. White pulp consists entirely of lymphoid tissue.
The spleen, in healthy adult humans, is approximately 7 to 14 centimetres (3 to 5⁄ in) in length. An easy way to remember the anatomy of the spleen is the 1×3×5×7×9×10×11 rule. The spleen is 1 by 3 by 5 inches (3 by 8 by 13 cm), weighs approximately 7 oz (200 g), and lies between the 9th and 11th ribs on the left-hand side and along the ...
Splenocyte. A splenocyte is a white blood cell that resides in the spleen and are involved in functions of the spleen, like filtering blood and the immune response. [1] Splenocytes consist of a variety of cell populations such as T and B lymphocytes, dendritic cells and macrophages, which have different immune functions. [2]
Cords of Billroth. 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. These cords contain half of the mouse body's monocytes as a reserve so that, after tissue ...
Extramedullary hematopoiesis. Micrograph showing nucleated red blood cells (bottom left of image), one of the elements necessary to call extramedullary hematopoiesis, in an endometrial polyp. H&E stain. Extramedullary hematopoiesis (EMH or sometimes EH[1]) refers to hematopoiesis occurring outside of the medulla of the bone (bone marrow). [2]
In vivo (within the blood vessel), the codocyte is a bell-shaped cell. It assumes a "target" configuration only when processed to obtain a blood film. In the film these cells appear thinner than normal, primarily due to their pallor (by which thickness is judged on microscopy). When the cells are flattened out on a smear, the top of the bell is ...
Macrophages (/ ˈmækroʊfeɪdʒ /; abbreviated M φ, MΦ or MP) are a type of white blood cell of the innate immune system that engulf and digest pathogens, such as cancer cells, microbes, cellular debris, and foreign substances, which do not have proteins that are specific to healthy body cells on their surface. [1][2] This process is called ...
Small, itchy bumps: These may be red, white, or yellow and can appear around the hair follicles. ... A swab of the affected area may be taken to be looked at more closely under a microscope. This ...