B4.3 Flashcards
What is the function of the heart?
Pumps blood around the body.
How many pumps make up the heart?
Two pumps.
What is the composition of the walls of the heart?
Almost entirely muscle.
How does deoxygenated blood return to the heart?
Through the vena cava.
Describe the flow of blood in the right atrium.
Blood flows through a valve into the right ventricle.
What happens when the right ventricle contracts?
It pumps blood out of the heart through the pulmonary artery.
Where does the pulmonary artery carry deoxygenated blood?
To the lungs.
What occurs in the lungs regarding blood?
Blood picks up oxygen and gets rid of carbon dioxide.
How does oxygenated blood return to the heart from the lungs?
Through the pulmonary veins.
Which chamber of the heart receives oxygenated blood from the lungs?
Left atrium.
What happens in the left ventricle during contraction?
It pumps oxygen-rich blood out of the heart through the aorta.
Where does the aorta carry oxygenated blood?
To all parts of the body.
What is the purpose of stents?
To keep narrowed or blocked arteries open.
What do statins do?
They reduce cholesterol levels in the blood.
How do stents function in artery blockage?
By keeping the narrowed or blocked arteries open.
What is the role of the aorta in circulation?
Carrying oxygenated blood to all parts of the body.
What is the effect of statins on cholesterol levels?
They reduce cholesterol levels in the blood.
What is the primary component of the walls of the heart?
Muscle tissue.
Through which vessel does deoxygenated blood return to the heart from the body?
Vena cava.
Where does the left atrium receive blood from?
The lungs, which provide oxygenated blood.
