THE HEART Flashcards
What is the primary function of the heart?
To pump blood throughout the body.
True or False: The heart has four chambers.
True.
Name the four chambers of the heart.
Left atrium, right atrium, left ventricle, right ventricle.
What separates the left and right sides of the heart?
The septum.
Fill in the blank: The _______ receives oxygenated blood from the lungs.
Left atrium.
Which chamber of the heart pumps blood to the body?
Left ventricle.
What type of blood does the right atrium receive?
Deoxygenated blood.
True or False: The heart is a muscular organ.
True.
What is the function of the valves in the heart?
To prevent backflow of blood.
What are the names of the two main types of valves in the heart?
Atrioventricular valves and semilunar valves.
What is the role of the pulmonary artery?
To carry deoxygenated blood from the right ventricle to the lungs.
Fill in the blank: The _______ carries oxygenated blood from the lungs to the heart.
Pulmonary vein.
Which part of the heart is responsible for initiating the heartbeat?
Sinoatrial (SA) node.
What is the role of the aorta?
To carry oxygenated blood from the left ventricle to the body.
True or False: The heart is located in the left side of the chest.
False. It is located in the center of the chest.
What is the function of the coronary arteries?
To supply blood to the heart muscle.
Fill in the blank: The heart’s pumping action is controlled by _______.
Electrochemical signals.
What is the term for the heart’s relaxation phase?
Diastole.
What is the term for the heart’s contraction phase?
Systole.
What is the significance of the pericardium?
It is the protective sac surrounding the heart.
Which chamber has the thickest walls?
Left ventricle.
True or False: The heart can function without a nervous system.
True.
What blood vessels carry blood away from the heart?
Arteries.
What blood vessels carry blood back to the heart?
Veins.
