VABC Vascular Anatomy 2

Question 1

Which layer of a blood vessel wall contains smooth muscle and elastic fibers responsible for vasoconstriction and vasodilation?

Accepted Answer

Tunica media

Answer

The tunica media contains smooth muscle and elastic fibers that regulate vessel diameter through vasoconstriction and vasodilation.

Question 2

The cephalic vein runs along which aspect of the forearm and upper arm?

Accepted Answer

Lateral (radial) aspect

Answer

The cephalic vein courses along the lateral (radial) aspect of the forearm and upper arm before emptying into the axillary vein.

Question 3

What is the name of the vessel formed by the union of the radial and ulnar veins in the antecubital fossa?

Accepted Answer

Brachial vein

Answer

The brachial vein is formed by the union of the radial and ulnar veins and accompanies the brachial artery in the upper arm.

Question 4

The thoracic duct drains lymph from which side of the body into the venous system?

Accepted Answer

Most of the body except the right upper quadrant

Answer

The thoracic duct drains lymph from the entire body except the right upper quadrant (right head, neck, arm, and right thorax), which is drained by the right lymphatic duct.

Question 5

Which anatomical landmark identifies the transition from the external jugular vein to the subclavian vein?

Accepted Answer

Junction with the anterior scalene muscle

Answer

The external jugular vein passes over the anterior scalene muscle before joining the subclavian vein, marking this anatomical transition.

(VABC) Vascular Access Board Certification Practice Test

(VABC) Vascular Access Board Certification Practice Test

VABC Vascular Anatomy 2