. The biology of cilia and flagella. Cilia and ciliary motion; Flagella (Microbiology). Fig. 11. Diagrams of transverse sections of some mammalian sperm tails. a: Section through the principal-piece of the tail of the sperm of the bandicoot (Peranieles), omitting the outer sheath struc- tures (see text) (from Cleland and Rothschild, 1959). b: Section through the mid-piece of the tail of the rat sperm. Note the differentiation in size of the outer fibres, the largest (1, 5 and 6) being those furthest from the plane through the central fibrils. Around these fibres is the mitochondrial sheath. c:
. The biology of cilia and flagella. Cilia and ciliary motion; Flagella (Microbiology). Fig. 11. Diagrams of transverse sections of some mammalian sperm tails. a: Section through the principal-piece of the tail of the sperm of the bandicoot (Peranieles), omitting the outer sheath struc- tures (see text) (from Cleland and Rothschild, 1959). b: Section through the mid-piece of the tail of the rat sperm. Note the differentiation in size of the outer fibres, the largest (1, 5 and 6) being those furthest from the plane through the central fibrils. Around these fibres is the mitochondrial sheath. c: Section through the principal-piece of the sperm tail of the rat. There is still a marked difference in size between the outer fibres, the two in the plane of the central fibrils have disappeared and their place has been taken by laminae projecting inwards from the fibrous sheath (cf. Plate XIc). Figs, b and c constructed from several sources referred to in 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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