Heart Physiology and Cardiac Function Quiz

Explore cardiac physiology with these quiz questions covering heart function, circulation, and cardiovascular health. Test your understanding now!

#1

Which chamber of the heart receives oxygenated blood from the lungs?

Right atrium
Left atrium
Right ventricle
Left ventricle
#2

What is the name of the valve located between the left atrium and left ventricle?

Tricuspid valve
Pulmonary valve
Mitral valve
Aortic valve
#3

Which of the following structures carries deoxygenated blood from the heart to the lungs?

Aorta
Pulmonary artery
Pulmonary vein
Superior vena cava
#4

What is the term for the relaxation phase of the cardiac cycle?

Systole
Diastole
Cardiac output
Tachycardia
#5

Which of the following is NOT a function of the heart?

Transporting oxygen to tissues
Regulating body temperature
Removing waste products
Maintaining blood pressure
#6

What is the name of the large artery that carries oxygenated blood away from the heart to the rest of the body?

Pulmonary artery
Aorta
Pulmonary vein
Vena cava
#7

What is the function of the sinoatrial (SA) node in the heart?

To conduct electrical impulses to the ventricles
To receive blood from the body
To generate the heart's rhythmic electrical impulses
To regulate blood pressure
#8

Which of the following is responsible for the contraction of cardiac muscle cells?

Sympathetic nervous system
Parasympathetic nervous system
Endocrine system
Autonomic nervous system
#9

What is the term for the volume of blood pumped out by each ventricle with each beat of the heart?

Stroke volume
Cardiac output
Heart rate
Ejection fraction
#10

What is the term for the period of ventricular contraction and blood ejection?

Diastole
Systole
Cardiac cycle
Tachycardia
#11

Which of the following factors can increase cardiac output?

Decreased sympathetic stimulation
Increased parasympathetic stimulation
Decreased stroke volume
Increased heart rate
#12

Which of the following is NOT a risk factor for cardiovascular disease?

Smoking
High blood pressure
Regular exercise
High cholesterol
#13

Which hormone is released by the adrenal gland and increases heart rate and blood pressure during times of stress?

Cortisol
Insulin
Epinephrine (adrenaline)
Thyroxine
#14

What is the term for the volume of blood remaining in each ventricle after contraction?

End-diastolic volume
Stroke volume
Cardiac output
Ejection fraction
#15

Which of the following conditions is characterized by a rapid heartbeat that starts in the ventricles?

Atrial fibrillation
Ventricular fibrillation
Atrial flutter
Sinus tachycardia
#16

Which of the following is NOT a function of the pericardium?

Preventing overfilling of the heart
Protecting the heart from infection
Producing hormones
Reducing friction between the heart and surrounding structures

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