Final answer:
The term for the ridge along the top of the cranium associated with the attachment of chewing muscles is the 'sagittal crest'. It enables muscle attachment for jaw movements.
Step-by-step explanation:
The term for a ridge along the top of the cranium, which typically represents increased bone area for the attachment of chewing muscles, is known as the sagittal crest. It is prominent in some species of primates and other animals and serves as an attachment site for muscles associated with the jaw, such as the temporalis muscles. This crest, along with other features like the zygomatic arch and the coronoid process of the mandible, are part of the skull's morphology that contributes to the capabilities and efficiency of an animal's bite and chew.