#1
Which chamber of the heart receives deoxygenated blood from the body?
#2
In which phase of the cardiac cycle does the aortic valve open and blood is ejected into the systemic circulation?
#3
What is the primary function of the atrioventricular (AV) node in the heart's conduction system?
#4
During which phase of the cardiac cycle does the atrioventricular (AV) valve close, preventing backflow into the atria?
#5
What is the term for the force exerted by blood against the walls of the arteries?
#6
What is the main function of the sinoatrial (SA) node in the heart?
#7
What is the term for the volume of blood pumped by each ventricle per minute?
#8
What is the term for the relaxation phase of the cardiac cycle when the heart chambers fill with blood?
#9
Which hormone is released by the adrenal glands and increases heart rate and force of contraction?
#10
Which component of the blood is responsible for oxygen transport to tissues and organs?
#11
Which vessel carries oxygenated blood from the lungs to the heart?
#12
What is the term for the resistance the heart must overcome to pump blood?
#13
What is the term for the excess fluid that can accumulate in the pericardial sac around the heart?
#14
Which of the following is a key factor affecting blood pressure regulation?
#15