Mitr/o
Mitral valve
My/o
Muscle
Occlus/o
To close up
Ox/i
Oxygen
Oxy
Sour, sharp, acid
Palpit/o
Throbbing
Pector/o
Chest
Phleb/o
Vein
Pulmon/o
Lung
Rrhythm/o
Rhythm
Scler/o
Hardening
Sept/o
A partition
Sin/o
A curve
Sphygm/o
Pulse
Sten/o
Narrowing
Steth/o
Chest
Thromb/o
Clot of blood
Valvul/o
Valve
Vas/o
Vessel
Vascul/o
Small vessel
Ven/o
Vein
Ventricul/o
Ventricle
Vers/o
Turning