blood vessels that carry blood away from the heart. Most arteries carry oxygenated blodd except the pulmonary artery. The aorta is the largest artery in the human body. Blood moves under high pressure.
veins
Blood vessel that carry blood towards the heart. Most veins carry deoxygenated blood, except the pulmonary veins. The vena cava is the largest vein in the human body. blood moves under low pressure. Veins are referred to as blood reservoir. Veins have valves.
Factors that move blood through veins:
Skeletal muscle contractions, blood vessel spasm, respiratory movement
capillaries
blood vessels that form link between the smallest arteries and smallest veins. one layer of cells thick made up of simple squamous epithelium.
tunica externa
outer layer of arteries and veins
media
middle layer of arteries and veins
intima
inner layer of arteries and veins
pulmonary circut
blood vessels that carry blood from the heart to the lungs and back to the heart
systemic circut
blood vessels that carry blood from the heart to all body parts and back to the heart
factors that affect blood pressure
cardiac output, blood volume, peripheral resistance and blood viscocity
stroke(cerebro Vascular accident)
condition brought about by blocking of blood vessels that supply blood to the brain
heart attack
condition that results from the blocking of blood vessels that supply blood to the heart
arterosclerosis
condition that results from accumulation of plaque in blood vessels