Lesson: Blood Vessels Biology

Students will be able to

• state the major blood vessels as capillaries, veins, and arteries,
• compare and contrast the structure of the capillaries, veins, and arteries in terms of width of walls, size of lumen, and presence of elastic or muscular layers,
• describe the role of arteries as transporting blood under high pressure away from the heart and around the body,
• describe the role of veins as transporting blood under low pressure from the organs of the body back to the heart,
• describe the role of capillaries in allowing the exchange of nutrients and oxygen between the blood and organs or tissues.