Exam 20: Blood Vessels

The ________ vein is the superficial vein running along the medial aspect of the forearm and arm.

The pulse of the posterior tibial artery is palpated behind the knee.

The presence of ________ in the veins and the action of skeletal muscle pressing on the walls ensure that blood return to the heart is in one direction.

Most small molecules pass through a capillary wall through which route?

The largest molecules that pass through the walls of typical capillaries are thought to use which route?

Which vessel is most commonly used to bypass a damaged coronary artery in coronary bypass surgery?

Which of the following statements about arteries is false?

Arterioles and venules have a vasa vasorum to provide nutrients to their outer walls, whereas the inner walls receive nutrients from blood in the lumen.

The correct proximal to distal sequence of the three vessels branching from the aortic arch is

Which artery arises from the inferior part of the abdominal aorta and supplies the distal half of the large intestine?

Why are aneurisms, or a sac-like outpocketing of a vessel wall, much more common in arteries than veins?

The hepatic portal system has two distinct capillary beds separated by a portal vein. What are the functions of these two capillary beds?

Systemic venous blood that is oxygen-poor but contains the lowest concentration of nitrogenous wastes occurs in the

Which arteries connect the basilar artery and the internal carotid artery forming the posterior aspect of the cerebral arterial circle?

What vessel in the fetus connects the pulmonary trunk to the aortic arch so that most of the blood bypasses the immature lungs?

Postcapillary venules function much like true capillaries.

What prevents the backflow of blood in veins?

Microvasculature that provides nourishment to the outer walls of the aorta is called the

The middle and posterior cerebral arteries are connected by the posterior communicating arteries.

Fenestrated capillaries