NCCT Anatomy and Physiology

Question 1

Which vein is most commonly used for routine venipuncture in adults?

Accepted Answer

Median cubital vein

Answer

The median cubital vein in the antecubital fossa is preferred because it is large, well-anchored, and least likely to roll.

Question 2

What are the three layers of a blood vessel wall called?

Accepted Answer

Tunica intima, tunica media, tunica adventitia

Answer

Blood vessels are composed of three layers: tunica intima (inner), tunica media (middle), and tunica adventitia (outer).

Question 3

Which chamber of the heart pumps oxygenated blood to the body?

Accepted Answer

Left ventricle

Answer

The left ventricle pumps oxygenated blood through the aorta to supply the systemic circulation of the body.

Question 4

What is the average adult blood volume?

Accepted Answer

4–6 liters

Answer

The average adult has approximately 4–6 liters of blood, comprising about 7–8% of total body weight.

Question 5

Which type of blood vessel carries blood away from the heart?

Accepted Answer

Arteries

Answer

Arteries carry blood away from the heart, while veins return blood to the heart.

NCCT - National Certified Phlebotomy Technician Exam Practice Test