Which structure attaches the tongue to the floor of the oral cavity?

A) papillae
B) vestibule
C) lingual frenulum
D) soft palate

Lingual Frenulum

A fold of mucous membrane in the midline of the underside of the tongue, connecting the tongue to the floor of the mouth.

Oral Cavity

The mouth, including the lips, teeth, gums, and the initial portion of the alimentary canal, playing a key role in speech, breathing, and digestion.

Tongue

The tongue is a muscular organ in the mouth that is essential for tasting, masticating (chewing) food, and aiding in the process of swallowing.