51 下列有關口腔黏膜的敘述，何者正確？
(A)角質化上皮之角質層透明顆粒（keratohyalin granules）周圍聚集許多張纖（tonofibrils）
(B)非角質化上皮靠近上層之細胞聚集許多肝醣、透明顆粒及成束之張纖
(C)角化上皮之膜覆被顆粒（membrane coating granules）呈現具無定形中心物之圓形外觀（circular with an amorphous core）
(D)非角化上皮之膜覆被顆粒呈現長且平行之板層狀（elongated and a series of parallel lamellae）

A. the tonofilaments in keratinized epithelium are aggregated into bundles to form tonofibrils, --角質化上皮中張絲聚集成束（稱為張纖）
B. those in nonkeratinized epithelium remain dispersed and so appear less conspicuous. --非角質化上皮中的張絲分散

In the upper part of the prickle cell layer a new organelle appears, called the membrane-coating or lamellate granule. These granules are small, membrane-bound structures containing glycolipid.

C. In keratinized epithelium the granules are elongated and exhibit a series of parallel lamellae. 角質化上皮中， 膜覆被顆粒呈現長且平行之板層狀
D. In nonkeratinized epithelium, by contrast, the granules appear to be circular with an amorphous core 非角質化上皮中， 顆粒呈現具定形中心物之圓形外觀