QUIZ 13 (Blood)

The life span of an erythrocyte is about _________ days.

120

Plasma makes up about ______ percent of a centrifuged sample of whole blood?

55%

Which leukocytes are granulocytes? a: Neutrophils b: Eosinophils c: Lymphocytes d: Monocytes e: Basophils f: Erythrocytes

a, b, e

The smallest and most abundant plasma proteins are the

albumins

Which are characteristic of leukocytes? a: Smaller than erythrocytes b: Have a nucleus c: Have no hemoglobin d: More numerous than erythrocytes e: Depending on type, may or may not contain granules

b, c, e

The leukocyte that releases histamine is the

basophils

Usually the least numerous of the leukocytes are the

basophils

The difference in concentration of various constituents in the plasma and interstitial fluid ensures that the constituents will

be able to diffuse through the capillary wall

One of the functions of blood is to regulate fluid levels in the body. If too much fluid escapes from the bloodstream and enters the tissues, blood pressure will

decrease

The process of producing the formed elements of blood is called

hemopoiesis

The reason it is more appropriate to call an erythrocyte a "formed element" rather than a "cell" is that erythrocytes

lack a nucleus and organelles

Old erythrocytes are phagocytized in the

liver&spleen

T-cells are a category of

lymphocytes

The leukocyte that will migrate in the blood and take up residence in the tissues as macrophages is the

monocytes

The leukocyte that is very active during a bacterial infection is the

neutrophils

Usually the most numerous of the leukocytes are the

neutrophils

Which term best describes the function of blood when considering the presence of leukocytes and antibodies?

protection

Why is the name "thrombocyte" inappropriate for platelets?

they have no nucleus

Blood is correctly classified as a(n)

tissue

Which term best describes the function of blood when considering the presence of carbon dioxide and endocrine hormones?

transportation