Compact bone consists of cylindrical units called

ATI RN

ATI RN Test Bank

A. trabeculae B. Haversian systems C. osteons D. Both B and C are correct

Correct Answer: C

Rationale: Osteons (or Haversian systems) are the cylindrical units of compact bone.

Which body system would NOT be lined with a mucous membrane?

A. digestive B. respiratory C. urogenital D. cardiovascular

Correct Answer: D

Rationale: Cardiovascular system is lined by endothelium, not mucous membranes.

Ligament is

A. Modified yellow elastic fibrous tissue B. Inelastic white fibrous tissue C. Modified white fibrous tissue D. None of the above

Correct Answer: A

Rationale: Ligaments are made of modified yellow elastic fibrous tissue, which provides elasticity and strength.

The spherical structured organelle that contains the genetic material is

A. Cell wall B. Ribosome's C. Mitochondria D. Nucleus

Correct Answer: D

Rationale: The nucleus contains the genetic material of the cell.

Which of the following term describe production of RBCs?

A. Anabolism B. Catabolism C. Erythropoiesis D. Homeostasis

Correct Answer: C

Rationale: Erythropoiesis refers to the production of red blood cells (RBCs).

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