Oral Aphthous Ulcers

question 47

Multiple Choice

Oral aphthous ulcers:

• A) Are triggered by herpes simplex virus
• B) Are caused by herpes simplex virus
• C) Are typically preceded by vesicles
• D) May be associated with cutaneous ulcers
• E) None of the above

---

Definitions:

Acetylcholine

a neurotransmitter in the nervous system responsible for muscle stimulation and various brain functions.

Tetanus

A bacterial infection characterized by muscle spasms, commonly transmitted through wound contamination with Clostridium tetani.

Immune System

The body's defense mechanism against infectious organisms and other invaders through a series of steps called the immune response.