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Complete blood count and blood smear. Basophilia is the condition of having greater than 200 basophils /μL in the venous blood . [ 1 ] Basophils are the least numerous of the myelogenous cells, and it is rare for their numbers to be abnormally high without changes to other blood components.
Basophils contain anticoagulant heparin, [8] which prevents blood from clotting too quickly. They also contain the vasodilator histamine, which promotes blood flow to tissues. They can be found in unusually high numbers at sites of ectoparasite infection (e.g., ticks). Like eosinophils, basophils play a role in both parasitic infections and ...
The word myelopoiesis has several senses in a way that parallels those of myeloid, and myelopoiesis in the narrower sense is the regulated formation specifically of myeloid leukocytes (myelocytes), allowing that sense of myelopoiesis to be contradistinguished from erythropoiesis and lymphopoiesis (even though all blood cells are normally ...
One litre of human blood contains about five billion (5x10 9) neutrophils, [6] which are about 12–15 micrometres in diameter. [7] Once neutrophils have received the appropriate signals, it takes them about thirty minutes to leave the blood and reach the site of an infection. [8] Neutrophils do not return to the blood; they turn into pus cells ...
An anterior pituitary basophil is a type of cell in the anterior pituitary which manufactures hormones. It is called a basophil because it is basophilic (readily takes up bases), and typically stains a relatively deep blue or purple. [1] These basophils are further classified by the hormones they produce.
A peripheral blood mononuclear cell (PBMC) is any peripheral blood cell having a round nucleus. [1] These cells consist of lymphocytes (T cells, B cells, NK cells) and monocytes, whereas erythrocytes and platelets have no nuclei, and granulocytes (neutrophils, basophils, and eosinophils) have multi-lobed nuclei. In humans, lymphocytes make up ...
A Basophil granulocyte stains dark purple upon H&E staining. Basophilic is a technical term used by pathologists. It describes the appearance of cells, tissues and cellular structures as seen through the microscope after a histological section has been stained with a basic dye. The most common such dye is haematoxylin.
Extracellular substances, such as free mucin, colloid, and ground substance, are also easily stained, and appear metachromatic. Major applications include blood smears , bone marrow aspirates, semen analysis and cytology of various body fluids including urine and cerebrospinal fluid .