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LCE SCIENCE
Ch 3: Circulation Sec 2 A Closer Look at the Blood Vessels
| Term | Definition |
|---|---|
| coronary artery | an artery that supplies blood to the heart itself |
| pulse | the alternating expansion and relaxation of an artery wall as blood travels through an artery |
| diffusion | the process by which molecules move from an area of higher concentration to an area of lower concentration |
| blood pressure | the pressure that is exerted by the blood against the walls of the blood vessels |