Question

Sutures can be found at all of the joints of an adult skull except between:

A. the zygomatic bone and the maxillary bone.
B. the temporal and the zygomatic bone.
C. the mandible and the maxilla.
D. the occipital bone and the parietal bone.

Answer 1

Sutures are immobile fibrous joints that connect the bones of the skull, except between the mandible and the maxilla, which form the temporomandibular joint.

Step-by-step explanation:

Sutures are fibrous joints found only in the skull, where they serve to strongly unite the skull bones, providing protection for the brain and stability for the facial structure. They are classified as synarthroses, which are joints that permit little or no movement. When considering the joints in an adult skull, all skull bones are joined by sutures except for the mandible, or the lower jawbone. Therefore, the correct answer to the question of which joints in an adult skull are not connected by sutures is C. the mandible and the maxilla. The mandible forms a movable joint called the temporomandibular joint with the skull.