CTBS Anatomy and Physiology 3

Question 1

Which anatomical region of a long bone is the primary site of hematopoiesis in adults?

Accepted Answer

Diaphysis red marrow

Answer

In adults, red bone marrow in the diaphysis of certain bones (and epiphyses of flat bones) is the primary site of blood cell production.

Question 2

When recovering heart valves, a tissue specialist must know that the aortic valve has how many cusps under normal anatomy?

Accepted Answer

Three

Answer

The normal aortic valve has three cusps (right, left, and non-coronary), and a bicuspid aortic valve is considered a congenital anomaly.

Question 3

Osseointegration of allograft bone is facilitated by which property of the bone extracellular matrix?

Accepted Answer

Hydroxyapatite mineral crystals deposited in collagen

Answer

Hydroxyapatite crystals deposited within the collagen framework of bone provide the mineral scaffold that enables host bone ingrowth and osseointegration.

Question 4

The femoral triangle is a clinically important anatomical region bounded superiorly by the inguinal ligament. Which structure occupies the most medial position within the femoral triangle?

Accepted Answer

Femoral canal

Answer

From lateral to medial in the femoral triangle: nerve, artery, vein, canal — remembered by the mnemonic NAVY (Nerve, Artery, Vein, Y-fronts/canal).

Question 5

During eye banking, the trabecular meshwork is significant because it regulates which physiological process?

Accepted Answer

Aqueous humor drainage and intraocular pressure

Answer

The trabecular meshwork at the iridocorneal angle drains aqueous humor into Schlemm's canal, directly regulating intraocular pressure.

(CTBS) Certified Tissue Bank Specialist Practice Test

(CTBS) Certified Tissue Bank Specialist Practice Test

CTBS Anatomy and Physiology 3