circ system

arteries

carry blood away from heart

capillaries

smallest blood vessels in body

veins

carry blood back to heart

endothelium

inner lining

valves

prevent back flow in veins

tunica media

thickest layer in artery

tunica adventitia

thickest layer in veins

tunica intima

capillaries only have this structure

arteriosclerosis

hardening of a persons arteries

ischemia

part of body NOT getting blood

necrosis

tissue dies

gangrene

tissue decay

vasodilators

pump them full of drugs, make their pipes swell up (dialate) (low blood pressure

aneurysm

weakened spot in artery (CVA) (TIA)

varicose veins

develop leaky valves in veins

hemorrhoids

varicose veins in rectum

phlebitis

vein inflammation

systemic

left

pulmonary (lungs)

right

hepatic portal

drains blood comping from spleen, stomach, pancreas, gall bladder, and intestines

fetal circ.

veins carry oxygen, arteries carry carbon dioxide (only present inside moms belly before born)

foramen ovale

“hole in the heart”

ductus arteriosum

blood vessel connecting pulmonary artery to the aorta bypassing non fundamental lungs to deliver oxygen-rich blood directly to the systemic circulation