Anatomy of the Heart
How many chambers does the human heart have?
4
What is the outermost layer of the heart?
True or False: Smoking and vaping are good for heart health.
False
During cardiac arrest, is a pulse present?
No
True or False: During cardiac arrest, a person usually remains conscious.
False
What chambers receive blood entering the heart?
Atria
Which heart layer is responsible for pumping blood?
Myocardium
The heart acts as the central ___ of the body.
Pump
Why is CPR important?
Because it can save someone's life
True or False: Oxygen-poor blood enters the heart through the right atrium.
True
What chamber pumps oxygen-rich blood to the body?
Left ventricle
Which layer lines the heart chambers and valves?
Endocardium
Name one thing you can do to protect your heart.
Exercise, healthy eating, sleep, or stress management
What life-saving action is required immediately during cardiac arrest?
CPR
True or False: The endocardium is responsible for pumping blood.
False (myocardium)
Which side of the heart handles oxygen-poor blood?
Right side
Which layer helps reduce friction as the heart beats?
Epicardium
What factor can increase heart problems if not managed?
Stress
Which condition is caused by blocked blood flow?
Heart attack
True or False: Oxygen-rich blood travels from the lungs to the left atrium.
True
Which chamber sends blood to the lungs?
Right ventricle
Which layer is the thickest and most muscular?
Myocardium
Without the heart, organs would fail within how long?
Seconds
Which condition is caused by an electrical failure?
Cardiac arrest
True or False: Blood becomes oxygen-rich in the right ventricle.
False (it happens in the lungs)