ramus

Disease from surrounding structures can invade the masticator space via the pterygopalatine fossa, the buccal space immediately anterior to the ramus, the foramen ovale, or by way of direct invasion.

咀嚼间隙临病变可循翼腭窝、颊间隙、上颌窦、卵圆孔等途径侵及咀嚼间隙。

In both types of feather, the barbules that extend from the barb ramus grow from a single layer of cells, called the barbule plate, on the periphery of the barb ridge.

而不论是何种毛，从枝主枝延伸出小枝，都从枝脊表面叫做「小枝板」单层细胞长出。