Exam Questions and CORRECT Answers
Composition of Blood - CORRECT ANSWER - Blood plasma, erythrocytes, leukocytes,
platelets
Blood Plasma - CORRECT ANSWER - Albumin - osmotic balance, pH buffering
Fibrinogen - clotting of the blood
Globulins
Defense (antibodies) and lipid transport
Erythrocytes - CORRECT ANSWER - Transport oxygen and help transport carbon dioxide
Leukocytes - CORRECT ANSWER - Defense and immunity
Lymphocyte, eosinophil, neutrophil, basophil, monocyte
Platelets (thrombocytes) - CORRECT ANSWER - Blood clotting
Hematopoiesis - CORRECT ANSWER - Blood cell formation, occurs in red bone marrow,
found in axial skeleton
Each type of blood cell is produced in different numbers in response to changing body needs and
different stimuli. After they mature, they are discharged into the blood vessels surrounding the
area
Erythropoiesis - CORRECT ANSWER - Process that produces red blood cells, it is stimulated
by decreased O2 in circulation, which is detected by the kidneys, which then secrete the hormone
erythropoietin
Reticulocyte - CORRECT ANSWER - Result of lost blood cells
, Young RBC, still contains some ER, enter blood stream to begin their task of transporting
oxygen. Within 2 days of release they have ejected the remaining ER and have become fully
functioning erythrocytes
Viscosity - CORRECT ANSWER - Resistance to the flow; formed elements tend to stick
together making it more difficult to glow than water
Whole blood is 4.5-5.5 times more difficult to flow than water
Osmolarity - CORRECT ANSWER - A measure of the concentration of solute (protein, urea,
RBC, electrolyte and glucose) in the plasma
Osmotic Pressure - CORRECT ANSWER - The tendency of a solution to hold water into it
The more solute concentration, the greater the osmotic pressure which means more water will
move in
Eg. low albumin means water will leak out of the blood
Hemoglobin - CORRECT ANSWER - Iron bearing protein, transports most of the oxygen
that is carried in the blood
It also binds with a small amount of carbon dioxide
Hematocrit - CORRECT ANSWER - The percentage of erythrocytes to total blood volume
Fetal Hemoglobin - CORRECT ANSWER - Differs from the hemoglobin formed after birth,
it has greater ability to pick up oxygen, this characteristic is highly desirable because fetal blood
is less oxygen rich than that of the mother
Oxyhemoglobin - CORRECT ANSWER - Formed by the combination of hemoglobin with
oxygen, present in oxygenated blood
Deoxyhemoglobin - CORRECT ANSWER - The form of hemoglobin without oxygen,
deoxygenated form of hemoglobin