What is the term for the fibrous joint that connects the two halves of the mandible at birth?

The correct term for the fibrous joint that connects the two halves of the mandible at birth is the mandibular symphysis. At birth, the mandible consists of two separate halves that are joined together by this fibrocartilaginous joint. As a child grows, the mandibular symphysis ossifies and the two halves fuse into a single bone. This structure is crucial for the proper alignment and function of the lower jaw.

The temporomandibular joint refers to the joint that connects the mandible to the skull, allowing for movements such as opening and closing the mouth. The coronary suture is a type of fibrous joint found at the junction of the frontal and parietal bones of the skull, not related to the mandible. The glenoid fossa is a shallow cavity in the temporal bone that articulates with the mandible at the temporomandibular joint, but it does not serve the purpose of connecting the halves of the mandible during infancy.