Where does the blood go after it leaves the right atrium?
What is the primary role of valves in the heart?
The cardiac cycle consists of systole and diastole phases.
Which of these blood vessels carry deoxygenated blood?
What type of blood vessels are responsible for exchange of materials between blood and tissues?
Which part of the heart receives oxygenated blood from the lungs?
Which blood vessels carry oxygen-rich blood away from the heart to the rest of the body?
What phase is the heart in when it is relaxed and filling with blood?
Which valves prevent backflow of blood into the ventricles?
What are the four chambers of the heart?
What does the aorta do?
What is the function of the coronary arteries?
What do veins do?
What do you call the contraction phase of the heart’s cardiac cycle?
The human heart has two atria and two ventricles.