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Gisselle Reyes Period 5 Cardiovascular system, A, A,O, A, anti-B, B, B,O,…
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- Tunica intima: Innermost layer
- Tunica media; middle layer (responsible for maintaining blood flow and blood pressure
- Tunica externa: outer layer
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- Blood pressure: force per unit area exerted on wall of blood vessel by blood
- Systolic pressure: pressure exerted in aorta during ventricular contraction
- Diastolic pressure: lowest level of aortic pressure when heart is at rest
- Pulse: throbbing of arteries due to difference in pulse pressures
- Systolic pressure: normally less than 120 mm Hg
- Diastolic pressure: normally less than 80 mm Hg
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- Transportation: Deliver oxygen, nutrients,hormones and other substances around the body
- Protection
- Regulation