Learning Catalytics) A&P II Exam With
Correct Detailed Answers.
After centrifuging, of the listed blood components, which contains the components of immune
function?
Plasma
Buffy coat
Erythrocytes
Hematocrit - Answer Plasma
A major function of the most common plasma protein, albumin, is ________.
maintenance of plasma osmotic pressure
buffering changes in plasma pH
fighting foreign invaders - Answer maintenance of plasma osmotic pressure
buffering changes in plasma pH
Red blood cells are efficient oxygen transport cells. Of the following characteristics, which is the
major contributor to the significant oxygen-carrying capacity of a red blood cell?
Red blood cells lack mitochondria.
Red blood cells don't divide.
Red blood cells are biconcave discs.
Red blood cells contain myoglobin. - Answer Red blood cells are biconcave discs.
Each hemoglobin can transport ________ oxygen atoms.
4
40
,amino acid
globin
oxyhemoglobin
iron atom - Answer iron atom
A patient with low iron levels would experience which of the following symptoms?
An increased white blood cell count
An increase in energy level
An increase in fatigue
decreased white blood cell count - Answer An increase in fatigue
A hematopoietic stem cell will give rise to __________.
erythrocytes
leukocytes
platelets
all of the above - Answer all of the above
Predict the outcome of an overdose of the hormone erythropoietin.
The blood viscosity increases to levels that may induce heart attacks or strokes.
The oxygen-carrying capacity remains unchanged despite elevated red blood cell counts.
Red blood cell counts remain unchanged, but the number of reticulocytes increases.
Blood viscosity levels decrease while oxygen-carrying capacity increases. - Answer The blood
viscosity increases to levels that may induce heart attacks or strokes.
, surge in iron release from the liver would occur.
The kidneys would secrete elevated amounts of erythropoietin.
There would be no change in blood composition. - Answer The kidneys would secrete elevated
amounts of erythropoietin.
If a patient has pernicious anemia, the inability of the body to absorb vitamin B12, the patient
________.
would have reduced blood iron levels
would have a decreased number of red blood cells
would have increased levels of hemoglobin
would not experience any effects on red blood cells - Answer would have a decreased number
of red blood cells
An elevated neutrophil count would be indicative of ________.
an allergic reaction
cancer
an acute bacterial infection
parasitic infection - Answer an acute bacterial infection
Antihistamines counter the actions of which white blood cells?
neutrophils
lymphocytes
basophils
eosinophils - Answer basophils
Leukemia is a general descriptor for which of the following disorders?