ULTRASTRUCTURE OF RESPIRATORY CILIA IN HUMAN
- VernacularTitle:人支气管上皮纤毛的超微结构
- Author:
Shouxin ZHANG
;
Shuxiang LI
;
- Publication Type:Journal Article
- Keywords:
Cilium;
Microtubule;
Submicrotubule;
Dynein arm;
Radial spoke;
Ciliary rootlet
- From:
Acta Anatomica Sinica
1954;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
The respiratory cilia of normal and abnormal regions in 20 patients with lung cancer or tuberculosis were observed under electron microscope.The results show that the 9?2+2 microtubules arrangement was seen in cross section of the cilium. Ultrastructure of the cilia is about the same as that of other mammalian ceils. However,a very interesting finding was that the ciliary rootlets became greatly hypertrophied.Thus,the structure was easily identified.It appeared as striated muscles. Therefore we propose a new idea that is quite different from Satir's hypothesis about the mechanism of ciliary movement.We think that ciliary rootlets may generate movement rather than fix cilia.Dynein arms and radial spoke may be involved in supporting and fixing for ciliary movement.
