Aseptic Necrosis of Bones May Be Caused by All the Following

question 20

Multiple Choice

Aseptic necrosis of bones may be caused by all the following except:

• A) Sickle cell anemia
• B) Thrombotic occlusion of a nutrient artery
• C) Trauma
• D) Bacteria
• E) Drugs

---

Definitions:

Gynecomastia

A condition in males characterized by enlarged breast tissue, which can result from hormonal imbalances, certain medications, or underlying health conditions.

Anticholinergic Properties

Characteristics of certain medications that block the action of acetylcholine, a neurotransmitter, which can affect various bodily functions but may lead to side effects like dry mouth and confusion.

Parasympathetic Nervous System

A division of the autonomic nervous system responsible for conserving energy and lowering the heart rate, aiding in digestion and the maintenance of bodily functions at rest.

Reticular Activating

Part of the reticular formation in the brainstem that plays a crucial role in controlling arousal and consciousness.