Any infection above the mouth drains into the lateral sinus, and that means the brain.

Growth lines are usually biconvex, forming ventral and lateral sinuses.

Growth lines are strongly biconvex in juvenile stages, later with shallow a lateral sinus.

The mature leaves on the vine have three lobes with open upper lateral sinuses (spaces between the lobes) of medium depth.

Delicate growth lines forming ventral and lateral sinuses and ventrolateral and dorsolateral salients have been foundon Canadian Arctic specimens.

The transverse sinuses (left and right lateral sinuses), within the human head, are two areas beneath the brain which allow blood to drain from the back of the head.

The lower lateral sinuses are less marked than the upper ones and the upper face of the leaf is yellowish green in color while the lower face is velvety.

Slender, gradually expanding orthocones or faintly endogastic longicones, the surfaces of which are covered with close spaced sinuous transverse crenulations that form broad dorsal and vental salients and lateral sinuses.

These include superior vena cava syndrome (SVCS), and thrombosis of the lateral sinus, superior sagittal sinus, internal jugular vein, or of the Great Cerebral Vein of Galen itself.

The aperture, which is constricted, consists of a narrow, virtical slit-like opening extending from the ventral hyponomic sinus to a dorsal sinus and two pairs of lateral sinuses that diverge in the upper portion.