后脑

Otic vesicle An epithelial sac behind the fifth rhombomere forming the semicircular canals dorsally and the otolith organs ventrally.

耳小囊形成于半规管背面与耳石器官腹面且在第特殊节状结构面的一个上皮囊。

In addition, the expression of GPR78 displayed the levels in tendency to decrease from telencephalon to metencephalon during embryonic period.

在胚胎期GRP78蛋白在组织的表呈现从端到逐渐降低的趋势。

The central nervous systeM consisted of brain, suboesophageal ganglion and ventral nerve-cord, and the differentiations aMong protocerebruM, deutocerebruM and tritocerebruM were obvious.

其中枢系统由、食管节、腹索组成，前、中、分化明显。