CARDIOVASCULAR SYSTEM

• heart- muscular organ that pumps blood to all parts of the body
• tricuspid valve- located between the right atrium and the right ventricle
• bicuspid valve- located between the left atrium and the left ventricle
• semilunar valve- located between the right ventricle and the pulmunary artery and between the left ventricle and the aorta
• pericardium- two-layer sac covering the heart that is filled with prericardial fuild
• visceral layer- lies closest to the myocardium
• parietal layer- lines the pericardiam
• myocardium- middle, thick, muscular layer
• endocardium- inner lining of the heart
• blood vessels- tube-like structure that carry blood throughout the body
• arteries- carry blood that containing oxygen
• arterioles- smallest artery
• aorta- largest artery in the body
• veins- carry blood containing carbon dioxide
• vanae cavae- largest vein in the body (superior vena cava and inferior vena cava)
• capillaries- connects the arterioles and venules
• atrial- pertaining to atria
• cardiology- study of the heart
• sphygmoscopy- examination of the pulse
• valvulitis- inflammation of a valve
• ventricular - pertaining to ventricles
• angiography- visualization of the blood vessels
• aortic- pertaining to the aorta
• arteriostenosis - narrowing of the arteries
• arteriolar - pertaining to arterioles
• phlebitis - inflammation of a vein
• vasoactive - acting on the blood vessels
• vascular - pertaining to the blood vessels
• venous - pertaining to the veins
• venular - pertaining to the venules
• atheroma- fatty deposit
• embolism- blockage due to an embolus
• thrombolysis- process of dissolving a clot
• aneurysm- balloon-like sac formed when weakening of the arterial wall leads to localized dilation
• angina pectoris- severe chest pain and a feeling of suffocation resulting form inadequate blood flow to the chest muscle
• aortostenosis- narrowing of the aorta
• angiopasm - sudden contraction of the smooth muscle in a blood vessel wall
• arrthymia - any irregularity in the heart beat
• arteriosclerosis - diminished elasticity in arterial walls, usually due to normal again process
• myocarditis - inflammation of the muscular layer of the heart wall, usually due to infection