#1
Which chamber of the heart pumps oxygenated blood to the body?
Left ventricle
ExplanationThe left ventricle pumps oxygenated blood to the body.
#2
What is the average resting heart rate for adults?
60-70 beats per minute
ExplanationThe average resting heart rate for adults is 60-70 beats per minute.
#3
What is the primary function of red blood cells in the circulatory system?
Transport oxygen
ExplanationThe primary function of red blood cells is to transport oxygen in the circulatory system.
#4
Which of the following is a major risk factor for cardiovascular diseases?
Obesity
ExplanationObesity is a major risk factor for cardiovascular diseases.
#5
What is the term for the condition where there is a blockage in the coronary arteries, leading to reduced blood flow to the heart muscle?
Angina
ExplanationThe term for the condition is angina, where there is a blockage in the coronary arteries, leading to reduced blood flow to the heart muscle.
#6
Which hormone is released by the adrenal glands in response to stress and can affect the cardiovascular system?
Cortisol
ExplanationCortisol is released by the adrenal glands in response to stress and can affect the cardiovascular system.
#7
Which blood vessels carry blood away from the heart?
Arteries
ExplanationArteries carry blood away from the heart.
#8
What is the medical term for high blood pressure?
Hypertension
ExplanationThe medical term for high blood pressure is hypertension.
#9
What is the purpose of the circulatory system in the human body?
Transportation of nutrients and oxygen
ExplanationThe circulatory system's purpose is the transportation of nutrients and oxygen in the human body.
#10
Which of the following is a symptom of a heart attack?
Chest pain or discomfort
ExplanationChest pain or discomfort is a symptom of a heart attack.
#11
In which blood vessels does the exchange of oxygen and nutrients with body tissues occur?
Capillaries
ExplanationThe exchange of oxygen and nutrients with body tissues occurs in capillaries.
#12
What is the term for an irregular heart rhythm?
Fibrillation
ExplanationThe term for an irregular heart rhythm is fibrillation.
#13
Which valve separates the left atrium from the left ventricle in the heart?
Mitral valve
ExplanationThe mitral valve separates the left atrium from the left ventricle in the heart.
#14
What is the role of the sinoatrial (SA) node in the heart?
Regulating heart rate
ExplanationThe SA node regulates the heart rate in the heart.
#15
Which of the following factors can contribute to the development of atherosclerosis?
High blood pressure
ExplanationHigh blood pressure can contribute to the development of atherosclerosis.
#16
What is the medical term for the inflammation of the inner lining of the heart chambers and valves?
Endocarditis
ExplanationThe medical term for the inflammation is endocarditis, which affects the inner lining of the heart chambers and valves.
#17
Which medical imaging technique is commonly used to visualize the blood vessels and heart chambers?
Echocardiography
ExplanationEchocardiography is commonly used to visualize the blood vessels and heart chambers.