science vocab cardovascular system
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- Cardiovascular system
- aka circulatory system made up of heart blood vessels and blood
- eretrocyte
- Red blood cells takes oxygen to all parts of body also helps with bone marrow
- Heart
- is a hollow muscular organ that pumps blood through body. Right side pumps to lungs Left side pumps to rest of body
- Arteries
- blood vessels that carry blood AWAY from heart
- Cappilaries
- tiny vessels where substances are exchanged between blood and body cells
- Veins
- Carries blood BACK TO heart
- Deoxygentated blood
- Blood with little oxygen and much CO2
- Thrombocyte
- platelets that help blood clot
- Oxygentated blood
- blood rich in oxygen
- Right Atrium
- upper chamber RECEIVES blood from body when it IS LOW IN OXYGEN AND HIGH IN CO2
- Left Atrium
- Oxygen rich blood moves from the lungs into the left atrium
- right ventricle
- lower chamber pumps oxygen poor blood out of heart to lungs
- left ventricle
- pumps oxygen rich blood to all parts of body
- pacemaker
- group of cells in right atrium. Sends a signal that makes heart muscle contract regulates the beating of heart
- arteriole
- connects the artery and cappilary
- venule
- connects the vein with the cappilary
- aorta
- largest blood vessel in the body the aorta carries blood from the left ventricle to the body
- septum
- thick muscular wall separates the left side from right side. prevents oxygen rich and oxygen poor blood from mixing in heart
- valve
- flap of tissue that prevents blood from flowing backwards
- difusion
- the process by which molicules move from an area which they are highly concentrated to an area which is less concentrated
- veracose veins
- when a valve in a vein isn't working and blod travels backward causing blood to collect and vein to swell.
- plasma
- the liquid part of blood
- hemolgobin
- Iron containing protein that binds chemically to oxygen molecules puts oxygen in red blood cells
- eucocyte
- white blood cells these are the bodies disease fighters
- fibrent
- a net of tiny fibers that is found in platelets that clot blood
- blood transfusion
- transfuses blood from one person to another
- lymphatic system
- a network of veinlike vessels that returns fluid to the blood streams lymph
- lymph
- fluid inside lymphatic system disolved minerals and glucose
- lymph nodes
- as lymph flows through the lymphatic system it passes through small knobs of tissue
- closed circulatory system
- all blood is incased in a tube somewhere in your body
- systole
- systolic is the plural for systoy