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Diagram showing the development of different blood cells from haematopoietic stem cell to mature cells. Haematopoiesis (/ h ɪ ˌ m æ t ə p ɔɪ ˈ iː s ɪ s, ˌ h iː m ə t oʊ-, ˌ h ɛ m ə-/; [1] [2] from Ancient Greek αἷμα (haîma) 'blood' and ποιεῖν (poieîn) 'to make'; also hematopoiesis in American English, sometimes h(a)emopoiesis) is the formation of blood cellular ...
Haematopoiesis (from Greek αἷμα, "blood" and ποιεῖν "to make"; also hematopoiesis in American English; sometimes also haemopoiesis or hemopoiesis) is the formation of blood cellular components. All cellular blood components are derived from haematopoietic stem cells. [3]
Hematopoietic stem cells (HSCs) are the stem cells [1] that give rise to other blood cells.This process is called haematopoiesis. [2] In vertebrates, the first definitive HSCs arise from the ventral endothelial wall of the embryonic aorta within the (midgestational) aorta-gonad-mesonephros region, through a process known as endothelial-to-hematopoietic transition.
This diagram shows the hematopoiesis as it occurs in humans. It may look incomplete when rendered directly from WikiMedia. Reference list is found at: File:Hematopoiesis (human) diagram.png. The morphological characteristics of the hematopoietic cells are shown as seen in a Wright’s stain, May-Giemsa stain or May-Grünwald-Giemsa stain.
A blood cell (also called a hematopoietic cell, hemocyte, or hematocyte) is a cell produced through hematopoiesis and found mainly in the blood. Major types of blood cells include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes).
Hematopoiesis then moves to the bone marrow at E18 in mice and 12wpc in humans, where it will reside permanently for the remainder of the individual's lifetime. In mice, there is a shift from the fetal liver to the spleen at E14, where it persists for many weeks postnatally while it occurs simultaneously in the bone marrow. [ 35 ]
This diagram shows the hematopoiesis as it occurs in humans with Icelandic names. Reference list is found at: Hematopoiesis (human) diagram.png: Date: 3 July 2007: Source: Modifying Hematopoiesis (human) diagram.png by A. Rad: Author: original: A. Rad, svg file drawn with FlashMX by birdy: Other versions
This diagram shows the hematopoiesis as it occurs in humans with no names, to be used as template for translations. Reference list is found at: Hematopoiesis (human) diagram.png: Date: 6 February 2010: Source: Modifying Hematopoiesis (human) diagram.png by A. Rad: Author: original: A. Rad, svg file drawn with FlashMX by birdy: Other versions