The heart and blood vessels Flashcards
Key term:
what is atrium?
Thin-walled and elastic and stretches as it collects blood
Key term:
what is ventricles?
They are the lower chambers in the heart which has thick muscular walls which pumps the blood with large force to the lungs and rest of the body.
Key term:
what is septum?
Septum is the wall between the left and right side of the heart, in order to prevent the mixing up of oxygenated and deoxygenated blood.
Key term:
what is Atrio-ventricular valve?
This valve is between the artium and the ventricle through which the blood is forced from atrium to ventricle and prevents back flow during systole.
Key term:
what is semi-lunar valve?
These valves stops the backflow of blood into ventricle.
Key term:
what is coronary artery?
Arteries that supply blood to the cardiac muscles of the heart.
Key term:
what is pulmonary artery?
it has the function of supplying deoxygenated blood to the lungs from right side of the heart.
Key term:
what is Myocardial Infraction?
Extremely dangerous condition caused by the lack of blood flow to the heart muscles and is it can be due to many factors but the common ones are blockage of heart arteries.
Key term:
what is systole?
The repetition of heart chambers contracting.
Key term:
what is diastole?
The relaxation of heart chambers.
Key term:
what is cardiac output?
It is the volume of blood pumped by heart per unit of time.
Key term:
what is stroke volume?
The volume of blood pumped per beat as the heart contracts and relaxes.
Key term:
what is Lumen?
It is the inside space of tubular structure like arteries and veins or even intestins.
Key term:
what is artery?
transports blood away from heart usually at high pressure.
Key term:
what is arterioles?
Smallest arteries that transport the blood to capillaries.
