Heart Flashcards
Pericardium
It is surrounded by a fluid filled sac its protects the heart and prevents overfilling it allows heart to work ina relatively friction free environment
Coronary arteries
Are blood vessels that supply the heart itself with blood the entire surface is covered in a network of blood vessels
Left atrium
One of four chambers of the heart
The atria act as holding chambers they collect blood in this case oxygenated in the left atrium and pump it to the left ventricle
Right atrium
One of four chambers of the heart
Act as a holding chamber collect blood in this case deoxygenated blood from the body into the right atrium and pump it to the right ventricle
Left ventricle
One of the four heart chambers
Ventricles being the stronger and muscular ones they receive blood from the artia and pump it to in this case the rest of the body via aorta from the left ventricle
Right ventricle
One of four heart chambers Ventricles being stronger and muscular they receive blood and pump it to in this case the lungs via pulmonary artery to get oxygenated
Septum
The heart has two separate sides one containing oxygenated and deoxygenated blood the septum is a thick wall that separates those two sides
Semilunar valves
Refering to both valves are located one on the right side of the heart in the pulmonary artery ( pulmonary valve) and one on the left side in the aortic pathway (aortic valve)
Valves
Are like small gates to prevent blood flowing in the wrong direction as of right now we know of valves in the veins and 4 inside the heart
AV valves
Atrioventricular valves are located in atria separating the ventricles and atria these valves make sure there is not back flow of blood from the ventricle back into the atria
The right side has one called tricuspid valve because it has three flaps
The left side has one called tricuspid valve bicuspid valve because is has two flaps
Tricuspid
Located in the right side of the heart separating the right atrium and right ventricle
Bicuspid
Located of the left side of the heart separating the left atrium and left ventricle
Vena cava
Collects the deoxygenated blood and brings it to the heart
Superior in the top vena cava collect deoxygenated blood from torso and arms up
Inferior in the bottom vena cava collect deoxygenated blood from torse and legs down
Pulmonary artery
They bring the deoxygenated blood from the heart to the lungs to get oxygenated
Pulmonary veins
Oxygenated blood from the lungs flows inside the pulmonary veins and brings it to the heart to be pumped into the rest of the body
Aorta
The largest artery in the body and send oxygenated blood out of the heart and to the rest of the body this is very high pressure
Superior vena cava
Top half of the vena cava collecting deoxygenated blood from the top half of the body
Inferior vena cava
The bottom half of the vena cava collecting cava collecting deoxygenated blood from the lower half of the body
Aortic valve
Located of the left side of the heart connecting to the aorta this valve prevents back flow of blood back into the left ventricle
Pulmonary valve
The valve located on the right side of the heart connects to the pulmonary artery and prevents back flow of blood back into the right ventricle
Mitral valve
Another name for bicuspid valve located on the left side of the heart separating left atrium and left ventricle
Systole
The part of the cardiac cycle where the heart is contracting and pumping
Diastole
The part of the cardiac cycle where the heart is at rest and refilling the ventricles with blood
