Chapter 19 Blood

Abnormal increase in number of WBC

Leukocytosis

Abnormal decrease in the number of WBCs

Leukopenia

What is the average life span of a red blood cell? How does its anucleate condition affect this life span?

Life span is 100-120 days. Because they are anucleate, they are unable to reproduce.

Ancestral cell of platelets

Megakaryocyte

Phagocyte in chronic infections

Monocyte

Agranulocytes (2)

Monocyte and lymphocyte

Name two gases

O2 and CO2

Primarily water, noncellular; the fluid matrix of blood

Plasma

Abnormal increase in number of RBC

Ploycythemia

What is the blood volume of an average-size adult?

5.5 liters

Condition of too few RBS or of RBCs with hemoglobin deficiencies

Anemia

Releases a vasodilator; the least abundant WBC

Basophil

Granulocytes (3)

Basophil, eosinophil, neutrophil

Formed elements

Basophils, eosinophils, erythrocytes, lymphocytes, megakaryocytes, monocytes, and neutrophils

Also called white blood cells

Basophils, eosinophils, lymphocytes, monocytes, and neutrophils

What determines whether blood is bright red or a dull brick-red?

Depends on the amount of oxygen the red blood cell is carrying

Number rises during parasite infections

Eosinophil

Also called a red blood cell

Erythrocyte

Transports oxygen

Erythrocyte

List three classes of nutrients found in plasma

Glucose-fatty acids, vitamins, amino acids

Name three ions

Sodium, potassium, calcium

Why are hematologic studies of blood so important in the diagnosis of disease?

These tests are useful diagnostic tools for the physician because blood composition reflects the status of many body functions and malfunctions.

Describe the consistency and color of the plasma observed in lab

Viscous; slippery; yellow-straw

Its name means "neutral-loving;" a phagocyte

neutrophil