. The biology of cilia and flagella. Cilia and ciliary motion; Flagella (Microbiology). Fig. 40. Diagrams showing the sequence of movements of cilia of (a) Sabellaria and (b) Paramecium. Notice particularly that the recovery stroke starts before the effective stroke is complete. Cilia do not all show the same form of beat, and the beating of many more types of cilia must be accurately described before we can attempt any classification of beating patterns. No " pendular " movements of the type figured by Gray (1928) have been described from cinematograph studies, and the evidence poin


. The biology of cilia and flagella. Cilia and ciliary motion; Flagella (Microbiology). Fig. 40. Diagrams showing the sequence of movements of cilia of (a) Sabellaria and (b) Paramecium. Notice particularly that the recovery stroke starts before the effective stroke is complete. Cilia do not all show the same form of beat, and the beating of many more types of cilia must be accurately described before we can attempt any classification of beating patterns. No " pendular " movements of the type figured by Gray (1928) have been described from cinematograph studies, and the evidence points to the fact that all ciliary beating cycles come under Gray's heading of '* flexural " movements. 3. The Functions of the Parts of Cilia The structure of cilia is well-known and consistent, but there is little evidence as to the functions of the various parts. A motile cilium must contain both contraction and compression elements, and certain structures seem well placed for the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Sleigh, Michael A. Oxford, New York, Pergamon Press


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