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Science, Chapter 3

Across
An iron containing protein found ion red blood cells that binds to oxygen molecules
Each of the two upper chambers of the heart that receive blood coming into the heart
A group of cells that sends out signals and makes the heart contract
Fluid inside the lymphatic system that consists of water, some white blood cells, and dissolved minerals like glucose
the liquid part of blood
substances like oxygen and glucose are exchanged between the blood and body cells.
A force exerted by blood on the walls of blood vessels
A hollow muscular organ that pumps blood throughout the body
Each lower chamber of the heart that pumps blood out of the heart
Blood vessels that carry blood back to the heart
A synonym for high blood pressure
consists of the heart, blood vessels, and blood
The largest artery in the body
take oxygen from the lungs and deliver it all over the body
condition in which an artery wall thickens as a result of the building up of fatty material
Down
Small knobs of tissue that filter lymph and trap bacteria
The process by which molecules move from an area of high concentration to an area of low concentration
An alternating expansion and relaxation of the artery wall
help the body fight off diseases
play an important role in forming blood clots
The first branch of arteries off the aorta that carry blood to the heart
A network of vein like vessels that returns the fluid to the bloodstream
A flap of tissue that prevents blood from flowing backwards
occurs when blood flow to part of the heart muscle is blocked