Divides body into left, right.

Slice dividing body into left-right.

Vein within brain's dural fold.

Joint connecting skull's left, right.

Divides body into left, right.

Ridge atop skull for muscles.

Axis around which lateral movements occur.

Connective joint between skull bones.

Depth measurement from front to back.

The sagittal sulcus is a midline groove that runs across the internal surfaces of part of the squamous part of the frontal bone, the parietal bones, and part of the occipital bones.

In the human skull, a sagittal keel, or sagittal torus, is a thickening of part or all of the midline of the frontal bone, or parietal bones where they meet along the sagittal suture, or on both bones.