ch. 10 blood

blood

The thick red fluid that flows through the body's blood vessels and transports important substances throughout the body.

formed elements

The cellular elements of blood; erythrocytes, leukocytes, and platelets.

plasma

the liquid part of blood

buffy coat

thin, whitish layer at junction between the formed elements & plasma

albumin

Protein in blood; maintain the proper amount of water in the blood

hematocrit

The percentage of erythrocytes to total blood volume

hemoglobin

The protein in red blood cells that carries oxygen

anemia

Reduced number or size of the red blood cells

polycythemia

an excessive or abnormal increase in the number of erythrocytes

leukocytosis

WBC, an abnormal increase in the number of white blood cells in the blood(11,000) as a result of infection

leukopenia

an abnormal lowering of the white blood cell count

leukemia

Cancer characterized by an increase of abnormal white blood cell

Megakaryocytes

fragments of bizarre multinucleate cells

Hemocytoblast

stem cells that give rise to all the formed elements of the blood

Erythropoietin

the process of erythrocyte formation

Hematopoiesis

formation of blood cells

Erythrocytes

red blood cells

Leukocytes

white blood cells

neutrophills

the most abundant of white blood cells; multilobed nucleus & very fine granules that respond to both acid & basic stains

Eosinophils

granular white blood cells whose granules readily take up a stain called eosin

Basophils

white blood cells whose granules stain deep blue with basic dye; have a relatively pale nucleus and granular-appearing cytoplasm

lymphocytes

Large dark purple nucleus; agranular white blood cells formed in the bone marrow that mature in the lymphoid tissue

monocytes

large single-nucleus white blood cell; agranular leukocyte-fight chronic infections (tuberculosis)

platelets

one of the iregular cell fragments of blood; involved in clotting