International Board of Certified Lactation Consultant (IBCLC) Practice Exam

What is the name of the strand of tissue connecting the upper lip to the gum tissue above or between the two front teeth?

1. Labial frenulum

2. Sublingual frenulum

3. Lingual frenulum

4. Oral frenulum

The correct answer is: Labial frenulum

The strand of tissue connecting the upper lip to the gum tissue above or between the two front teeth is referred to as the labial frenulum. This structure plays a role in oral function, including lip movement and the positioning of the teeth. Its location is specifically at the midline of the upper lip, anchoring it to the gums. Understanding the anatomy and function of the labial frenulum is crucial in contexts such as breastfeeding, where proper lip and tongue function can impact the infant's ability to latch effectively. The other options relate to different types of frenulum within the oral cavity. For instance, the sublingual frenulum connects the tongue to the floor of the mouth, while the lingual frenulum connects the underside of the tongue to the bottom of the mouth. The term oral frenulum is more generalized and not specific to the structure described in the question. Therefore, the precise identification of the labial frenulum is essential for recognizing its anatomical function and relevance in lactation and oral health.