What is the name of the suture that separates the frontal bone from the parietal bones?

What is the name of the suture that separates the frontal bone from the parietal bones?

• A. Sagittal suture
• B. Coronal suture
• C. Lambdoid suture
• D. Squamous suture

Answer: (B)

The suture that separates the frontal bone from the parietal bones is known as the coronal suture. This fibrous joint runs horizontally across the top of the skull, marking the boundary between the frontal bone at the front of the skull and the two parietal bones that lie to the sides and back. Understanding this is crucial for recognizing how the skull's bony structure is organized and how these sutures play a role in the overall architecture of the cranium.

The other sutures refer to different separations between other cranial bones. The sagittal suture runs down the middle of the skull, separating the two parietal bones. The lambdoid suture is found at the back of the skull, separating the parietal bones from the occipital bone. The squamous suture marks the boundary between the parietal bones and the temporal bones on the sides of the skull. Each of these sutures has a specific anatomical location and function, making it essential to differentiate them for a comprehensive understanding of cranial anatomy.