Cardiovascular Flashcards
Apex
the pointy part of the heart
Base
the non pointy part of the heart
Pericardium
the whole heart its self
Atria
the two upper chambers, that receives blood from veins
Ventricles
the two lower chambers, that receives blood from the atria
Interatrial septum
thin wall tissue that separates the right and left atria
Superior venae cavae
a large vein responsible for returning deoxygenated blood collected from the body to the right atrium
Inferior venae cavae
a large vein that returns blood from the legs and abdomen to the heart
Pulmonary arteries
transport deoxygenated blood from the right side of the heart to the lungs for oxygenation
Pulmonary veins
blood vessels that carry oxygen-rich blood from your lungs to your heart
Aorta
main artery that carries blood away from your heart to the rest of your body
Atrioventricular valves
mitral valve, and the tricuspid valve
Bicuspid valves
aortic valve that contains only two cusps
Tricuspid valves
aortic valve that contains only three cusps
Chordae tendineae
strong, fibrous connections between the valve leaflets and the papillary muscles
Semilunar valves
paired valves of the heart at the bases of the aorta and the pulmonary artery
Coronary arteries
supply blood to the heart muscle
Cardiac veins
returns deoxygenated blood (containing metabolic waste products) from the myocardium to the right atrium
Coronary sinus
major coronary vein located in the rear section of the heart
Sinoatrial node
generates an electrical signal that causes the upper heart chambers (atria) to contract
Purkinje fibers
specialized conducting fibers composed of electrically excitable cells
Pacemaker
device used to control an irregular heart rhythm
Systole
ventricular contraction/ejection
Diastole
when the blood vessels return blood to the heart to prepare for the next ventricular contraction
