Question

multiple choice question
the cheeks terminate at the fleshy ————, which form the ———— wall of the oral cavity.

o masseter; posterior
o temporalis; anterior
o lips; anterior
o risorius; posterior

Explanation:

The cheeks are part of the face. The lips are fleshy structures. The oral cavity has walls - anterior, posterior, etc. The lips are at the front (anterior) of the oral cavity. Masseter is a muscle for chewing (not related to the end of cheeks as per the question context). Temporalis is also a chewing muscle. Risorius is a muscle related to facial expression (smiling) but not forming the described oral cavity wall.

Answer:

lips; anterior