Vocab 1
An artery that supplies blood to the heart itself.
what is coronary artery
Each of the two upper chambers of the heart that receives blood that comes into the heart.
What is atrium
A blood cell that fights disease.
what is white blood cell
A blood vessel that carries blood back to the heart.
what is a vein
A hollow, muscular organ that pumps blood throughout the body.
What is the heart
The pressure that is exerted by the blood against the walls of blood vessels.
what is blood pressure
Also called the cardiovascular system, the body system that consists of the heart, blood vessels, and blood.
What is the circulatory system
A cell in the blood that picks up oxygen in the lungs and delivers it to cells elsewhere in the body.
What are red blood cells
The alternating expansion and relaxation of an artery wall as blood travels through an artery.
what is pulse
The largest artery in the body.
What is the aorta
A tiny blood vessel where substances are exchanged between the blood and the body cells.
What are capillaries
The liquid part of blood.
what is plasma
A blood vessel that carries blood away from the heart.
What is an artery
The process by which molecules move from an area of higher concentration to an area of lower concentration.
What is diffusion
A lower chamber of the heart that pumps blood out to the lungs and body.
what are ventricles