Heart structure Flashcards
(20 cards)
What is the primary function of the heart?
To pump blood throughout the body.
How many chambers does the heart have?
Four chambers.
Which chamber of the heart receives oxygenated blood from the lungs?
The left atrium.
True or False: The right ventricle pumps blood to the lungs.
True.
Fill in the blank: The _____ separates the left and right sides of the heart.
septum.
What are the two upper chambers of the heart called?
Atria.
What are the two lower chambers of the heart called?
Ventricles.
Which valve prevents backflow from the left ventricle to the left atrium?
The mitral valve.
Multiple Choice: Which structure carries blood away from the heart? A) Veins B) Arteries C) Capillaries
B) Arteries.
What is the role of the aorta?
To distribute oxygenated blood from the heart to the body.
Which valve prevents backflow from the aorta into the left ventricle?
The aortic valve.
True or False: The pulmonary arteries carry oxygenated blood.
False.
What is the function of the right atrium?
To receive deoxygenated blood from the body.
Fill in the blank: The _____ valve prevents backflow from the right ventricle to the right atrium.
tricuspid.
What is the name of the heart’s natural pacemaker?
The sinoatrial node (SA node).
Which part of the heart wall is responsible for contraction?
Myocardium.
Multiple Choice: Which type of blood vessel returns blood to the heart? A) Arteries B) Veins C) Capillaries
B) Veins.
What is the purpose of heart valves?
To ensure unidirectional blood flow through the heart.
True or False: The left ventricle has thicker walls than the right ventricle.
True.
What circulatory pathway includes the lungs?
The pulmonary circulation.
