Cardiovascular System Heart Flashcards
What are the three main branches of arteries that branch off the aortic arch?
The brachiocephalic trunk, left common carotid artery, and the left subclavian artery.
What is the structural difference between AV valves and semilunar valves?
AV valves are bicuspid (two leaflets) and tricuspid (three leaflets); semilunar valves are both tricuspid.
What is the function of the AV valves?
To prevent backflow of blood into the atria during ventricular contraction.
What is the function of the semilunar valves?
To prevent backflow of blood into the ventricles.
What structure is described as the largest blood vessel of the heart?
Aorta.
What structure collects blood from coronary veins?
Coronary sinus.
What prevents backflow to the left atrium?
Mitral valve.
What prevents backflow to the left ventricle?
Aortic valve.
What transports blood from the right ventricle?
Pulmonary artery.
What is the category of valves between ventricles and blood vessels?
Semilunar valves.
What are the pumping chambers of the heart?
Right & left ventricles.
What do the superior and inferior vena cava connect to?
Right atrium
What is the pathway from the right ventricle to the lungs?
Right ventricle → pulmonary valve → lungs
What returns oxygenated blood from the lungs to the heart?
Pulmonary veins → left atrium
What is the pathway from the left ventricle to the body?
Left ventricle → aortic valve → aorta → body
What valve is located between the left atrium and left ventricle?
Mitral valve
Fill in the blank: Right atrium connects to the _______.
Right ventricle
Fill in the blank: The pulmonary artery carries blood from the _______ to the lungs.
Right ventricle
True or False: The aorta carries deoxygenated blood to the body.
False
What valve is located between the right ventricle and pulmonary artery?
Pulmonary valve
What is the function of the mitral valve?
Prevents backflow from the left ventricle to the left atrium
