. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FINE STRUCTURE OF HAGF1SH SPhRM. Figure 4. Longitudinal and cross sections of various regions of the tail, (a) The base of a flagellum. The proximal centriole (PC) and distal centriole (DC) lie almost longitudinally. Elongated mitochondria (M) are arranged along the axoneme (AX), (b) A cross section through a centriole. (c) An oblique section through the base of a flagellum. Four mitochondria encircle the axoneme. (d) A longitudinal section of the winding and twisting flagellum. Two long mitochondria flank the axoneme. (e) C
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FINE STRUCTURE OF HAGF1SH SPhRM. Figure 4. Longitudinal and cross sections of various regions of the tail, (a) The base of a flagellum. The proximal centriole (PC) and distal centriole (DC) lie almost longitudinally. Elongated mitochondria (M) are arranged along the axoneme (AX), (b) A cross section through a centriole. (c) An oblique section through the base of a flagellum. Four mitochondria encircle the axoneme. (d) A longitudinal section of the winding and twisting flagellum. Two long mitochondria flank the axoneme. (e) Cross sections of three flagellae. Two mitochondria flank the axoneme in the plane of two central singlets, (f) Cross sections of flagellae through near endpiece (left) and endpiece (right). Note that the axoneme without mitochondria has incomplete doublets. Bar = 250 nm (in a, b, e, f) and 500 nm (in c, d). rosomal process is produced dc novo following the acro- somal exocytosis at the anterior end of the sperm (Holland ft a/., 1988). Spermatozoa of vertebrates such as amphib- ians (Yoshizaki and Katagiri, 1982; Fig. 6c), reptiles (Fu- rieri, 1970; Fig. 6d), birds (Okamura and Nishiyama, 1978; Fig. 6e), and mammals (Yanagimachi and Noda, 1970; Fig. 60 have a cap-shaped acrosomal vesicle and underlying subacrosomal material, which cover the an- terior portion of the nucleus. The exocytosis of the ac- rosomal vesicle occurs at several points, and a new ac- rosomal process does not protrude (Yanagimachi and Usui, 1974; Okamura and Nishiyama, 1978; Yoshizaki and Katagiri. 1982). A variety of acrosomal structures are found in rish spermatozoa. The lamprey, which is a cyclostome, has spermatozoa that carry a spherical acrosomal vesicle at. 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 Marine Biological Laborator
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
