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MAMMALIAN SPERM acrosome nucleus middle-piece (mitochondria) principal piece flagellum head end piece.

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Presentation on theme: "MAMMALIAN SPERM acrosome nucleus middle-piece (mitochondria) principal piece flagellum head end piece."— Presentation transcript:

1 MAMMALIAN SPERM acrosome nucleus middle-piece (mitochondria) principal piece flagellum head end piece

2 MAMMALIAN SPERM acrosome nucleus mitochondrias principal piece end piece middle-piece dense fibers fibrous sheath axoneme

3 SPERM MORPHOLOGY IN ANTS and 3 = Human sperm; 2 and 4 = sperm of Acromyrmex subterraneus subterraneus

4 n a n 2341 SPERM HUMUN AND INSECT: HEAD REGION 1 = human sperm; 2-4 = ant sperm. a = acrosome, n = cucleus, v = acrosomal vesicle; p = perfuratorium

5 ax dm ax

6 ax 1 2

7 n ca ax ca n ax md ca NUCLEUS–FLAGELLUM TRANSITION REGION = sperm draft; 2-7 ant spermatozoa

8 DIVERSITY OF INSECT SPERM Spermatozoa of: Hemiptera (1,2); Neuroptera (3); Lepidoptera (4); Coleoptera (5,6)

9 DIVERSITY OF HYMENOPTERAN SPERM

10 ca n ax md ca = sperm draft; 2-7 ant spermatozoa

11 DIVERSITY OF ANT SPERM

12

13 Cambridge University Press 1987


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