Exchanges between what 2 things happen at the capillary walls?
What are the 3 coats or tunics that make up all blood vessels except for capillaries? (Hint: from innnermost to outermost)
What are the 3 layers of a tunica intima? (Hint: from innermost to outermost)
The tunica media is composed primarily of what 2 substances? (Hint: a type of muscle and a type of protein)
What is the function of smooth muscle in regards to blood vessels?
What are the 2 main reasons to smooth muscle regulating the diameter of blood vessels?
Tunica externa may be composed of what 2 tissue types?
Compare the walls of arteries and veins.
The tunica media is thicker in arteries for what 2 structural reasons?
Generally, why are arteries thicker than veins? (Hint: pumping action)
1. Elastic arteries are best at being which type of reservoir?
2. Elastic arteries are also best for what 2 actions that will provide what type of flow?
What are 3 examples of elastic arteries?
What are medium-sized arteries and account for most of the arteries found in the body?
1. Compared to elastic arteries, muscular arteries are better at what ability?
2. However, they are less ____ than elastic arteries.
Describe the number of layers of smooth muscle in the tunica media of arterioles.
Arterioles play a role in regulating blood flow to what areas of the body?
How does the skeletal muscle "pump" promote venous return?
What also aids in the return of blood to the heart?