Ch 19: Blood Group 1 - Section 19_1-19_3
What is hematocrit?
The percentage of blood composed of erythrocytes
Nora was exposed to radiation that caused her red bone marrow to make fewer red blood cells. This condition is known as __________.
aplastic anemia
During leukopoiesis, basophils are derived from __________.
myeloblasts
All red blood cells in an adult originate in the __________.
red bone marrow
The primary function of red blood cells is to __________.
transport oxygen and carbon dioxide
The most abundant component of plasma is __________.
water
A centrifuged sample of blood shows 53% plasma, 1% buffy coat, and 46% erythrocytes. What percentage of the blood is composed of leukocytes and platelets?
1%
What is the average lifespan of erythrocytes?
100-120 days
How much blood does the average adult have?
5 L
What percentage of the blood is composed of plasma?
55%
Normal blood pH should fall between __________.
7.35 and 7.45
Which of the following factors is not related to anemia?
Abnormal leukocytes
What plasma protein is most important for the blood's colloid osmotic pressure?
Albumin
Which leukocyte is the least common and functions to mediate inflammation?
Basophil
Which of the following characteristics is associated with erythrocytes?
Biconcave shape
Which of the following products from the breakdown of hemoglobin is excreted as a waste product by the liver?
Bilirubin
What causes a bruise to appear greenish in the skin?
Biliverdin
How can hydrophobic steroids travel in the blood?
By binding to hydrophilic transport proteins
Which of the following functions is not associated with erythropoietin?
Decrease production of the protein hemoglobin
Which leukocytes have cytoplasmic granules that stain red and bilobed nuclei?
Eosinophils
What cell gives rise to all formed elements?
Hematopoietic stem cell (HSC)
What is the oxygen-binding protein found in erythrocytes?
Hemoglobin
What organ serves as the control center for the regulation of erythropoiesis?
Kidney
Which of the following organs produce most of the plasma proteins?
Liver
Which type of leukocyte may produce antibodies?
Lymphocyte
What cells are categorized as agranulocytes?
Lymphocytes and monocytes
What is the most common type of leukocyte in a healthy adult?
Neutrophil
Which of the following functions is not associated with blood?
Protecting internal organs
In erythropoiesis, what is the name of the cell that has ejected its nucleus and other organelles prior to being released into the bloodstream?
Reticulocyte
Which organ traps older erythrocytes so they will be removed from circulation?
Spleen
