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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).
Any blood cell definition involves a variety of cell types, each with specific functions. The primary components of blood are plasma, leukocytes, erythrocytes, and platelets; the latter three are all blood cell examples.
Blood cells, also known as hematocytes, hemocytes, or hematopoietic cells, are cells produced mostly in the blood and are synthesized primarily in the red bone marrow. Blood cells make up about 45% of the blood volume, while the rest (55%) is occupied by blood plasma.
blood cell formation, continuous process by which the cellular constituents of blood are replenished as needed. Blood cells are divided into three groups: the red blood cells (erythrocytes), the white blood cells (leukocytes), and the blood platelets (thrombocytes).
Overview. Blood is mostly fluid but contains cells and proteins. Blood has four parts: Red blood cells (bottom right), white blood cells, platelets (middle right) and plasma (top right). What is blood? Blood is an essential life force, constantly flowing and keeping your body working.
Observe how a red blood cell travels from the heart to the lungs and other body tissues to exchange oxygen and carbon dioxide In a circuit through the cardiovascular system, red blood cells transport oxygen from the lungs to the body tissues and transport carbon dioxide from the body tissues to the lungs. (more) See all videos for this article.
Lesson 1: Circulatory and pulmonary systems. The lungs and pulmonary system. Red blood cells. Circulatory system and the heart. Hemoglobin. Components of blood.
blood, fluid that transports oxygen and nutrients to the cells and carries away carbon dioxide and other waste products. Technically, blood is a transport liquid pumped by the heart (or an equivalent structure) to all parts of the body, after which it is returned to the heart to repeat the process.
Blood supplies essential substances, such as sugars and oxygen, to cells and organs, and removes waste from cells. Hematologists work to identify and prevent blood and bone marrow diseases.
Meet the blood cells. See a figure of all the cellular elements of blood in Janeway & Traver's Immunobiology. A sample of blood can be further separated into its individual components by spinning the sample in a centrifuge.