has Ijeenobserved in the human large intestine, and in the efferent ducts of the testisof a mouse. Fig. 32, a and b. Longer processes which aic \-ibratile but notretractile are knowm as cilia. They cover the free surfaces of manycpitheha either simple or stratiJled. In the living condition the… … ars; cutlcularplosomeb; and of cilia is eiTecti\e in one direction only, so that mucus or solid particlesmay be swept by their action across the surface of the epithelium, forexample from the trachea to the mouth. In the lower animals the strokemay be reversed under certain conditions. Or-dinarily…
Histology · Microscopy
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
