The heart Flashcards
(20 cards)
What type of muscle makes up the walls of the heart?
Cardiac muscle called myocardium
How many chambers does the heart have?
Four chambers
What are the names of the two chambers at the top of the heart?
Atria
What are the names of the two chambers below the atria?
Ventricles
What separates the right and left sides of the heart?
A partition
What valve connects the right atrium and the right ventricle?
Tricuspid valve
What valve connects the left atrium and the left ventricle?
Mitral valve
What is the function of the tricuspid and mitral valves?
They open to let blood in and close to prevent it from flowing backwards
Through which vessels does blood flow towards the heart?
Veins
Through which vessels does blood flow away from the heart?
Arteries
Do oxygenated blood and deoxygenated blood mix in the heart?
No
What do the superior and inferior cava veins transport?
Blood rich in carbon dioxide and poor in oxygen
To which chamber do the superior and inferior cava veins lead?
Right atrium
What does the right ventricle pump blood to?
Pulmonary artery
What does the pulmonary artery transport?
Blood rich in carbon dioxide and poor in oxygen
From where do the pulmonary veins lead blood to the heart?
From the lungs to the left atrium
What type of blood do the pulmonary veins transport?
Blood rich in oxygen
What does the aorta artery carry?
Oxygenated blood
Fill in the blank: Blood always flows towards the heart through the _______.
veins
Fill in the blank: Blood always flows away from the heart through the _______.
arteries
