Final answer:
The temporalis muscle typically attaches to the sagittal crest and, along with the masseter muscle, aids in the process of mastication by exerting force needed to chew food.
Step-by-step explanation:
The muscle of mastication that attaches to the sagittal crest is not specifically mentioned in our provided text, but typically it is the temporalis muscle that attaches to the sagittal crest in various mammals, including humans. While the provided text emphasizes that the masseter muscle is the main muscle for chewing, which elevates the mandible to close the mouth, the temporalis muscle assists by retracting the mandible and can be felt by placing fingers on your temple as you chew. Due to its attachment to the sagittal crest, the temporalis muscle is able to exert a significant amount of force, which aids in the process of mastication, or chewing.