HOSA Dental Terminology Practice

What is the commisure in the context of oral anatomy?

1. Middle of the tongue

2. Corner of the mouth where the lips meet

3. Outer area of the gums

4. Area where teeth meet

The correct answer is: Corner of the mouth where the lips meet

The commisure refers specifically to the points at which the lips meet at the corners of the mouth. This term is important in the field of oral anatomy because it serves as a structural landmark that plays a role in various functions, such as speech and facial expressions. Understanding the anatomy of the commisure is essential for dental professionals since it is involved in the assessment of oral health and conditions that may affect the mouth. The other choices do not accurately represent the definition of the commisure. The middle of the tongue is known as the medial or central area, the outer area of the gums pertains to the alveolar mucosa, and the area where teeth meet is referred to as the occlusal surface or contact point, none of which relate to the corner of the mouth.