VPHY 3100 Exam 3 – Questions with
verified answers already passed
What is happening to the volume of the blood in the ventricles during isovolumic
contraction? - correct answer ✔✔Volume is not changing
In ventricular systole, what is the ventricular pressure (P) relative to the atria and
arteries - correct answer ✔✔Higher than both atrial P and arterial P
Which of the following is FALSE about lymphoid stem cells?
- can be found in bone marrow
- can differentiate into leucocytes
- can differentiate into RBCs - correct answer ✔✔Can differentiate into RBCs
Which of the following is the correct order of erythropoiesis, starting with the
most undifferentiated and ending with the most mature cell? - correct answer
✔✔Hematopoietic stem cell, myeloid stem cell, proerythroblast, basophilic
erythroblast, reticulocyte, erythrocyte
(does not include all steps, review other set)
Iron released from hemoglobin is transported through the blood by ___ to the ___
- correct answer ✔✔Transferrin, bone marrow
,In a patient with polycythemia, we would observe: - correct answer ✔✔an
abnormal increase in the number of red blood cells
Which of the following stimulates erythropoisis?
- COPD
- low hemoglobin
- elevation increase
- aerobic exercise
- all of the above - correct answer ✔✔All of the above
What effect does leukemia have on erythropoiesis? - correct answer ✔✔Leukemia
decreases erythropoiesis
What happens with the valves at the "lub" of "lub dub" - correct answer ✔✔The
mitral valve closes and the aortic valve opens
Considering the coponents of blood, which of the following are formed elements?
- platelets
- erythrocytes
- leucocytes
- all of the above - correct answer ✔✔all of the above
, The blood vessels that contain blood with high partial pressure of O2 are (pick 2):
a) arteries in the systemic circulation
b) veins in the systemic circulation
c) arteries in the pulmonary circulation
d) veins in the pulmonary circulation - correct answer ✔✔A and D
Order of pathway for conducting the electrical impulse in the heart is: - correct
answer ✔✔SA node -> atrial muscles -> AV node -> bundle of His -> Purkinjie
fibers -> ventricular muscles
(does not include all steps of pathway)
In ECG (EKG), the QRS wave represents:
- repolarization of atria
- depolarization of atria
- depolarization of ventricles
- repolarization of ventricles - correct answer ✔✔Depolarization of ventricles
The second heart sound (dub) occurs because of: - correct answer ✔✔the closure
of semilunar valves
verified answers already passed
What is happening to the volume of the blood in the ventricles during isovolumic
contraction? - correct answer ✔✔Volume is not changing
In ventricular systole, what is the ventricular pressure (P) relative to the atria and
arteries - correct answer ✔✔Higher than both atrial P and arterial P
Which of the following is FALSE about lymphoid stem cells?
- can be found in bone marrow
- can differentiate into leucocytes
- can differentiate into RBCs - correct answer ✔✔Can differentiate into RBCs
Which of the following is the correct order of erythropoiesis, starting with the
most undifferentiated and ending with the most mature cell? - correct answer
✔✔Hematopoietic stem cell, myeloid stem cell, proerythroblast, basophilic
erythroblast, reticulocyte, erythrocyte
(does not include all steps, review other set)
Iron released from hemoglobin is transported through the blood by ___ to the ___
- correct answer ✔✔Transferrin, bone marrow
,In a patient with polycythemia, we would observe: - correct answer ✔✔an
abnormal increase in the number of red blood cells
Which of the following stimulates erythropoisis?
- COPD
- low hemoglobin
- elevation increase
- aerobic exercise
- all of the above - correct answer ✔✔All of the above
What effect does leukemia have on erythropoiesis? - correct answer ✔✔Leukemia
decreases erythropoiesis
What happens with the valves at the "lub" of "lub dub" - correct answer ✔✔The
mitral valve closes and the aortic valve opens
Considering the coponents of blood, which of the following are formed elements?
- platelets
- erythrocytes
- leucocytes
- all of the above - correct answer ✔✔all of the above
, The blood vessels that contain blood with high partial pressure of O2 are (pick 2):
a) arteries in the systemic circulation
b) veins in the systemic circulation
c) arteries in the pulmonary circulation
d) veins in the pulmonary circulation - correct answer ✔✔A and D
Order of pathway for conducting the electrical impulse in the heart is: - correct
answer ✔✔SA node -> atrial muscles -> AV node -> bundle of His -> Purkinjie
fibers -> ventricular muscles
(does not include all steps of pathway)
In ECG (EKG), the QRS wave represents:
- repolarization of atria
- depolarization of atria
- depolarization of ventricles
- repolarization of ventricles - correct answer ✔✔Depolarization of ventricles
The second heart sound (dub) occurs because of: - correct answer ✔✔the closure
of semilunar valves
