This is an MCQ-based quiz for GRE on Circulatory System.
This includes the heart (cardiovascular), lungs (pulmonary), arteries, veins, coronary and portal vessels (systemic).
Which valve separates the left atrium from the left ventricle?
Which of the following blood vessels returns blood to the right atrium of the heart?
Which chamber of the heart pumps blood into the aorta?
What is the function of arteries in the body?
Which portion of the conduction system acts as the "pacemaker" of the heart, and spontaneously conducts action potentials?
The shape of which blood vessel type can be altered in order to redirect blood flow?
The reason for the dicrotic notch on the aortic pressure curve is
Contraction of aorta
Closure of the aortic valve
Rapid filling of the left ventricle
Closure of the pulmonary valve
Rise in the carotid sinus pressure leads to
This sets glomerular capillary pressure apart from other capillaries found in the body
Lower filtration pressure
Higher filtration pressure
Both (a) and (b)
None of these
This is the similarity between pulmonary and systemic circulation
Peripheral vascular resistance
Volume of the circulation per minute