VA-BC Vascular Anatomy & Physiology 2

Question 1

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

Accepted Answer

Tunica media

Answer

The tunica media is the middle layer containing smooth muscle and elastic fibers that regulate vessel diameter.

Question 2

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

Accepted Answer

Lateral

Answer

The cephalic vein travels along the lateral (radial) aspect of the forearm and upper arm before entering the axillary vein.

Question 3

What is the primary function of venous valves?

Accepted Answer

Prevent retrograde blood flow

Answer

Venous valves are bicuspid structures that prevent retrograde (backward) flow of blood, aiding venous return against gravity.

Question 4

Which vessel carries deoxygenated blood from the right ventricle to the lungs?

Accepted Answer

Pulmonary artery

Answer

The pulmonary artery is unique among arteries in carrying deoxygenated blood from the right ventricle to the pulmonary capillary bed.

Question 5

The basilic vein joins which vessel to form the axillary vein?

Accepted Answer

Brachial vein

Answer

The basilic vein merges with the brachial vein at the lower border of the teres major muscle to form the axillary vein.

(VA-BC) Vascular Access Nurse Certification Practice Test