NCMA Anatomy and Physiology

Question 1

Which organ is responsible for producing insulin to regulate blood glucose levels?

Accepted Answer

Pancreas

Answer

The pancreas contains islets of Langerhans that produce insulin, which lowers blood glucose by facilitating cellular uptake of glucose.

Question 2

What is the largest organ of the human body by surface area?

Accepted Answer

Skin

Answer

The skin is the largest organ, covering the entire exterior of the body and serving as the primary protective barrier against pathogens.

Question 3

How many chambers does the human heart have?

Accepted Answer

Four

Answer

The heart has four chambers — two atria (upper) and two ventricles (lower) — that work together to pump oxygenated and deoxygenated blood.

Question 4

Which blood vessel carries oxygenated blood from the left ventricle to the rest of the body?

Accepted Answer

Aorta

Answer

The aorta is the largest artery in the body, carrying oxygenated blood from the left ventricle into the systemic circulation.

Question 5

The process by which somatic cells divide to produce two identical daughter cells is called:

Accepted Answer

Mitosis

Answer

Mitosis is the type of cell division that results in two genetically identical daughter cells, used for growth, tissue repair, and replacement.

NCMA - National Certified Medical Assistant Practice Test