Cardiovascular System 7

Medical Terminology

9 cards·by Kamand

heart sound

lubb-dubb

lubb (first) sound caused by closing of ___ and ___ valves

mitral, bicuspid

dubb (second) sound caused by closing of ___ and ___ valves

aortic, pulmonary

heartbeat

electrical activity in the heart

located on floor of right atrium near interatrial septum

atroventricular (AV) node

bundle of electrical fibers near the middle of the septum, leads to Purkinje fibers

Bundle of His

contraction (electrical stimulation) of both atria

P-waves

contraction of both ventricles, atria relax when ventricles contract

QRS complex

electrical recovery and relaxation of the ventricles

T-wave