生长晕

15天左右，生长晕直径可达3～3.2mm，生长晕中的细胞主要包括：成纤维样细胞、神经样细胞、类生殖干细胞三种类型。

About 15 days , the diameter of the growth halo is up to 3-3.2 mm , the cells of the growth halo include three types : fibroblasts , nerve like cells , and germ stem cell similar cells .

黄鳝成体性腺组织原代培养3-5天，可见组织周围有细胞迁出，并形成生长晕。

The tissue block pasted culture method were used to culture gonad tissues of Monopterus Albus , the cells migrated out around tissues after 3-5 days culturing and the growth halo emerged .

角化囊肿与其他囊肿和正常粘膜的上皮细胞相同，生长缓慢，细胞生长晕周围规则，由呈漩涡状生长的成纤维细胞围绕。

The epithelial cells of all the cysts and mucosa grew slower with the cell masses surrounded by fibroblasts which grew in whirl manner with a round and smooth periphery .

神经生长因子（NGF）可促进靶神经节神经突起生长晕的生长。

Nerve growth factor ( NGF ) can promote the outgrowth of neurites of the target ganglia .