Anatomy Terms Flashcards
Aorta
main artery
Apex
lower, pointed portion of the heart
Arteriole
small vessels in the body; lead to capillaries
Artery
vessels that carry blood away from the heart
Atrioventricular (AV) Node
responsible for the conduction of electrical impulses in the heart
Atrium (plural; atria)
upper chambers of the heart
Bicuspid Valve
mistral valve; between left atrium & ventricle
bundle of his
nerve fibers that conduct electrical impulses through the heart
Capillary
Smallest unit of vascular system; location of oxygen and carbon dioxide exchange
Chordae Tendinae
Connect AV valves to the wall of the heart
Diastole
Relaxation phase of the heart
Diastolic
Lower arterial pressure; bottom # in blood pressure
Epicardium
Inner layer of the pericardium
Lumen
Cavity (inside) of a blood vessel
Mitral valve
Bicuspid valve left side
Pericardium
Outside layer of heart
Pulse
Dilation of any artery from heart contraction sending blood through a vessel
Purkinje Fibers
In ventricles; causing ventricles to contract
Semilunar valves
Valves leaving the ventricles that carry blood away from the heart
Septum
Wall separating right and left sides of the heart
Systole
Contraction phase of heart muscle
Systolic
Maximum arterial pressure; top number in BP
Tricuspid Valve
Valve on right side of heart (AV)
Vein
Vessel that carries blood toward the heart
Vena Cava
Largest veins in the body
Ventricles
Lower, pumping chambers of the heart
Venules
Small vessels that collect blood from capillaries and join veins
