. The development of the human body : a manual of human embryology. Embryology; Embryo, Non-Mammalian. H. { N. Fig. 4.—Human Spermatozoon. 1, Front view; 2, side view of the head; e, terminal filament; k, head; /, tail; m, middle-piece.—(After Retzius.) Fig. 5.—Diagram Showing the Structure of a Human Spermatozoon. Af, Axial filament; Ann, annulus; H, head; He, lower border of head-cap; m, middle-piece; N, neck; Na and Np, anterior and posterior nodule; S, sheath of axial filament; Spf, spiral filament.—(Bonnet, after Meves.) The filament thus projects somewhat beyond the actual end of the
. The development of the human body : a manual of human embryology. Embryology; Embryo, Non-Mammalian. H. { N. Fig. 4.—Human Spermatozoon. 1, Front view; 2, side view of the head; e, terminal filament; k, head; /, tail; m, middle-piece.—(After Retzius.) Fig. 5.—Diagram Showing the Structure of a Human Spermatozoon. Af, Axial filament; Ann, annulus; H, head; He, lower border of head-cap; m, middle-piece; N, neck; Na and Np, anterior and posterior nodule; S, sheath of axial filament; Spf, spiral filament.—(Bonnet, after Meves.) The filament thus projects somewhat beyond the actual end of the tail, forming what is known as the terminal filament or end-piece (Fig. 4, e). To understand the significance of the Various parts entering into the composition of the spermatozoon a study of their development is necessary, and since the various processes of spermatogenesis have been much more accurately observed in such mammalia as the rat. 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 McMurrich, J. Playfair (James Playfair), 1859-1939. Philadelphia : P. Blakiston's son & co.
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Keywords: ., bookautho, bookcentury1900, bookdecade1910, booksubjectembryology
