#1
What is the primary function of the cardiovascular system?
#2
Which blood vessel carries deoxygenated blood from the body to the heart?
#3
What is the term for the abnormal quivering or contractions of the heart muscles, often leading to irregular heartbeats?
#4
Which ion plays a crucial role in the initiation of cardiac muscle contraction?
#5
What is the primary function of the sinoatrial (SA) node in the heart?
#6
Which chamber of the heart pumps oxygenated blood to the systemic circulation?
#7
What is the term for the inadequate blood supply to a tissue or organ?
#8
What is the term for the condition where blood flow to a part of the heart muscle is blocked, leading to tissue damage?
#9
Which lipid is often referred to as 'bad cholesterol' in the context of cardiovascular health?
#10
Which hormone is released by the adrenal glands during the 'fight or flight' response, leading to increased heart rate and blood pressure?
#11
Which of the following is a risk factor for cardiovascular disease?
#12
What is the mechanism of action of beta-blockers in cardiovascular treatment?
#13
What is the role of the renin-angiotensin-aldosterone system (RAAS) in blood pressure regulation?
#14
In heart failure, which class of medications is commonly used to reduce fluid retention and edema?
#15