#1
Which chamber of the heart receives oxygenated blood from the lungs?
Left atrium
Right atrium
Left ventricle
Right ventricle
#2
What is the average resting heart rate for adults?
50-60 beats per minute
70-80 beats per minute
90-100 beats per minute
110-120 beats per minute
#3
Which of the following is not a function of the cardiovascular system?
Transporting nutrients and oxygen to cells
Regulating body temperature
Removing waste products from cells
Assisting in immune response
#4
Which of the following is a symptom of a heart attack?
Sudden blurred vision
Persistent coughing
Sudden chest pain or discomfort
Nausea after meals
#5
Which of the following is not a risk factor for hypertension?
Age
Gender
Obesity
High salt intake
#6
Which blood vessels carry oxygenated blood away from the heart?
Veins
Arteries
Capillaries
Venules
#7
What is the term for the volume of blood pumped by each ventricle per minute?
Stroke volume
Cardiac output
End-diastolic volume
Pulse pressure
#8
What is the role of the sinoatrial (SA) node in the heart?
Conduction of electrical signals
Pumping blood to the body
Filtering oxygen from the blood
Regulating blood pressure
#9
Which component of blood is responsible for clotting?
Red blood cells
White blood cells
Platelets
Plasma
#10
Which of the following is responsible for carrying deoxygenated blood from the body to the heart?
Pulmonary artery
Pulmonary vein
Superior vena cava
Inferior vena cava
#11
Which of the following is not a risk factor for cardiovascular disease?
High blood pressure
Regular exercise
Obesity
Smoking
#12
What is the function of the mitral valve in the heart?
Preventing backflow of blood into the left atrium
Controlling blood flow to the lungs
Regulating blood pressure
Supplying oxygen to the heart muscle
#13
In which part of the cardiovascular system does gas exchange occur?
Arteries
Veins
Capillaries
Venules
#14
What is the term for the condition where blood flow to a part of the heart muscle is blocked, leading to tissue damage?
Hypertension
Myocardial infarction
Atherosclerosis
Arrhythmia
#15
What is the term for the condition characterized by the accumulation of fatty deposits in the inner lining of arteries?
Atherosclerosis
Thrombosis
Embolism
Hypertension