31) An aneurysm is
A) a rupture in an artery.
B) a buildup of fatty deposits on an arterial wall.
C) a sac-like widening or outpocketing of an artery.
D) a stroke.
32) The pulse of the facial artery is palpated
A) anterior to the auricle of the ear near the temple.
B) anterior to the masseter muscle at the inferior margin of the mandible.
C) anterior to the sternocleidomastoid.
D) in the anterior triangle of the neck.
33) A blood vessel that ranges from 0.3 mm to about 1 cm in diameter and has a large tunica media relative to the size of the lumen is
A) an elastic artery.
B) a muscular artery.
C) an arteriole.
D) a capillary.
34) In a capillary bed, relaxation of the precapillary sphincters causes more blood to flow
A) into the thoroughfare channels.
B) into the arterioles.
C) through the true capillaries.
D) through the metarterioles.
35) The dorsalis pedis artery is located by
A) finding the head of the fibula and palpating inferior to its neck.
B) palpating between the first and second metatarsal.
C) placing the fingers behind the knee.
D) placing a finger behind the medial malleolus.
36) What artery enters the skull through the foramen spinosum and supplies the inner surface of the parietal bone, dura mater, and parts of the temporal bone?
A) internal carotid artery
B) middle cerebral artery
C) middle meningeal artery
D) basilar artery
37) Two large (wide) arteries that have relatively superficial locations and are often wounded are the
A) aorta and the popliteal artery.
B) right and left coronary arteries.
C) brachial artery and posterior intercostal arteries.
D) common carotid artery and the femoral artery (in the superior thigh).
38) If a physician cannot feel a pulse in the popliteal fossa, the ________ artery is most likely narrowed by atherosclerosis.
A) dorsalis pedis
B) femoral
C) fibular
D) greater saphenous
39) Of the following, the only unpaired dural sinus is the
A) cavernous sinus.
B) superior sagittal sinus.
C) transverse sinus.
D) carotid sinus.
40) Which vessel is missing in the following statement? "Tracing venous blood from the inferior left side of the posterior abdominal wall to the heart, we find that blood enters the posterior intercostal veins, the hemiazygos vein, the superior vena cava, and the right atrium."
A) the azygos vein
B) the hepatic portal vein
C) the inferior vena cava
D) the right brachiocephalic vein