DEVELOPMENT OF HAIR CELLS IN EMBRYONIC CHICKS BASILAR PAPILLA
DEVELOPMENT OF HAIR CELLS IN EMBRYONIC CHICKS BASILAR PAPILLA
复制标题
DOI：
10.3109/00016487809107513
复制
发表时间：
1978-01-01
影响因子：
1.4
通讯作者：
FERMIN, CD
中科院分区：
文献类型：
--
作者：
COHEN, GM;FERMIN, CD
在第7 - 21天（孵化），毛细胞[HC]的鸡胚从一个未分化的上皮细胞转化为圆柱形的高毛细胞（THC），投手形的短毛细胞（SHC）或中间毛细胞共享的结构特征的前2。到第11天，毛细胞类型已明确。在第7天首次识别出毛发（静纤毛和动纤毛），并在第13天与成虫模式相似。随着毛细胞大小的增加，细胞核占据相对较小的体积，在THC中位于中心，在SHC中位于基底。核仁在整个发育过程中都很突出，即使在刚孵化的小鸡身上也很明显。第11天表皮锥开始形成。到第10天，感觉神经末梢在HC的基部形成突触，到第11天，HC形成突触棒。虽然传出神经突起的证据，早在第11天，突触接触和他们的cisploms确定的第19天，但可能形成更早。支持细胞从圆柱形转变为颈缩的瓶形细胞，并可分泌至少一部分盖膜。
During the 7th-21st (hatching) days, hair cells [HC] of the embryonic chick transform from an undifferentiated epithelium into cylindrically-shaped tall hair cells (THC), pitcher-shaped short hair cells (SHC) or intermediate hair cells that share structural characteristics of the first 2. By the 11th day hair cell types are unambiguous. Hairs (stereocilia and a kinocilium) were 1st identified on the 7th day and resembled the adult pattern on the 13th. The nucleus occupies relatively less volume as hair cells increase in size, becoming positioned centrally in THC and basally in SHC. Nucleoli, which are prominent throughout development, remain conspicuous even in newly hatched chicks. The cuticular cone begins to form on the 11th day. By the 10th day, sensory nerve endings synapse on the bases of the HC, which by the 11th day develop synaptic bars. Although efferent neurites were in evidence as early as the 11th day, synaptic contacts and their cisterns were identified by the 19th day but may form earlier. Supporting cells transform from cylindrically to flask-shaped cells with constricted necks and may secrete at least a portion of the tectorial membrane.