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27 terms

Anatomy Blood Vocab

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Mast Cell
Immune cells that function to detect foreign substances in the tissue spaces and initiate local inflammatory responses against them
Albumin
Most abundant plasma protein
Thrombus
Clot that develops and persists in an unbroken blood vessel
Deoxyhemoglobin
Hemoglobin that has detached oxygen and is returned to its original shape; reduced hemoglobin
Reticulocytes
Immature erythrocytes
Hematocrit
Percentage of erythrocytes in total blood volume
Erythrocytes
Red Blood Cells
Plasma
Nonliving fluid component of blood; contains formed elements and dissolved solutes
Histamine
Causes vasodilation and increases vascular permeability
Hemopoiesis
Blood cell formation
Hemostasis
Stoppage of bleeding
Buffy Coat
Whitish layer present at the erythrocyte-plasma junction that contains leukocytes and platelets
Platelets
Cell fragments involved in clotting
Leukocytes
White blood cells
Diapedesis
Passage of blood cells through intact vessel walls into tissue
Serotonin
Chemical that enhances vascular spasm
Neutrophils
Most abundant type of white blood cell
Erythropoiesis
Process of erythrocyte formation
Leukopoiesis
The production of white blood cells
Formed Elements
Living blood cells; platelets, leukocytes, and erythrocytes
Coagulation
Process in which blood is transformed from a liquid to a gel
Oxyhemoglobin
When oxygen binds to the oxygen molecules on the hemoglobin found within the red blood cell
Hemoglobin
Oxygen-transporting component of erythrocytes
Heparin
Anticoagulant secreted into blood plasma
Embolus
Occurs if a thrombus breaks away from the vessel wall and floats freely within the blood stream
Polycythemia
An excessive or abnormal increase in the number of erythrocytes
Hemocytoblast
Bone marrow cell that gives rise to all formed elements