61) How do the arteries of the pulmonary circuit differ from those of the systemic circuit?

A) They branch more than those of the systemic circuit.

B) Their vessels’ diameters are narrower.

C) The tunic composition of their vessel walls is generally thicker.

D) They carry oxygen-poor blood.

E) There are valves in the branching arteries of the pulmonary circuit.

62) The celiac trunk provides blood to the

A) brain.

B) diaphragm.

C) liver and spleen.

D) large intestine.

E) suprarenal glands.

63) Blood from the superficial structures of the head and neck is collected by the

A) vertebral vein.

B) axillary vein.

C) brachiocephalic vein.

D) internal jugular vein.

E) external jugular vein.

64) After crossing the axilla, the axillary artery becomes the

A) radial artery.

B) ulnar artery.

C) brachial artery.

D) subclavian artery.

E) digital artery.

65) Which of the following is(are) an anastomosis(es)?

A) palmar arch

B) digital arteries

C) aortic arch

D) intercostal arteries

E) dural sinus

66) The internal carotids and the basilar artery are interconnected by an anastomosis called the

A) internal carotid artery.

B) carotid sinus.

C) cerebral arterial circle.

D) dorsal arch.

E) middle cerebral artery.

67) The ________ divides the aorta into a superior thoracic aorta and an inferior abdominal aorta.

A) pericardium

B) mediastinum

C) diaphragm

D) peritoneum

E) pleura

68) Near the level of vertebra L4, the abdominal aorta branches to form the

A) common carotid arteries.

B) common iliac arteries.

C) femoral arteries.

D) popliteal arteries.

E) tibial arteries.

69) The vessel that receives most of the blood from organs inferior to the diaphragm is the

A) internal jugular vein.

B) external jugular vein.

C) superior vena cava.

D) inferior vena cava.

E) coronary sinus.

70) Small veins in the neural tissue of the brain empty directly into the

A) coronary sinuses.

B) dural sinuses.

C) circle of Willis.

D) external jugular vein.

E) vertebral veins.