19. The Blood Vessels

Major arteries of the systemic circulation

Major arteries of the systemic circulation - Part II

Which of the following is true when comparing arteries and veins?

Which of the following types of blood vessels have the proportionally thickest tunica media of all vessels?

An elastic lamina on both sides of the tunica media is a characteristic of __________.

Identify the major arteries in the following diagram. a. ___ b. ___ c. ___ d. ___ e. ___ f. ___ g. ___ h. ___ i. ___

The blood vessels that play the most important role in regulating blood pressure and blood flow to a tissue are the (a) arteries, (b) arterioles, (c) veins, (d) venules, (e) capillaries.

The baroreceptors in the carotid sinus and aortic arch are sensitive to a. a decrease in CO₂ , b. changes in arterial pressure, c. a decrease in O₂, d. all of these.

The myocardium receives its blood supply directly from the a. aorta, b. coronary arteries, c. coronary sinus, d. pulmonary arteries.