There are very developed rough surfaced endoplasmic reticulums ( rer ) which was lamellar arrange in cytoplasm of acinar cells and there are much zymogen granules in cytoplasm where approach the lumen of acinus under the electron microscope 電鏡下,胰腺泡細(xì)胞內(nèi)有非常發(fā)達(dá)的粗面內(nèi)質(zhì)網(wǎng),排列呈板層狀,靠近腺泡腔的胞質(zhì)中有許多大而圓的酶原顆粒。