MAMMALIAN SPERM acrosome nucleus middle-piece (mitochondria) principal piece flagellum head end...
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Transcript of MAMMALIAN SPERM acrosome nucleus middle-piece (mitochondria) principal piece flagellum head end...
MAMMALIAN SPERMMAMMALIAN SPERM
acrosome
nucleus
middle-piece (mitochondria)
principal pieceflagellum
head
end piece
MAMMALIAN SPERM
acrosome
nucleus
mitochondrias
principal piece
end piece
middle-piece
dense fibers fibrous sheath
axoneme
SPERM MORPHOLOGY IN ANTS
11 2 3 44
1 and 3 = Human sperm; 2 and 4 = sperm of Acromyrmex subterraneus subterraneus
nn
aa
nn
22 33 4411
SPERM HUMUN AND INSECT: HEAD REGIONSPERM HUMUN AND INSECT: HEAD REGION
1 = human sperm; 2-4 = ant sperm. a = acrosome, n = cucleus, v = acrosomal vesicle; p = perfuratorium
22
33
44
11 22 33 44
axax
dm
dm dm
axax
ax
11 22
n
ca
ax
can
ax
md
md
ca
ca
NUCLEUS–FLAGELLUM TRANSITION REGION
11 22 33
44
55
66
77
1= sperm draft; 2-7 ant spermatozoa
DIVERSITY OF INSECT SPERM
11 22
33 44 55 55
Spermatozoa of: Hemiptera (1,2); Neuroptera (3); Lepidoptera (4); Coleoptera (5,6)
DIVERSITY OF HYMENOPTERAN SPERM
can
ax
md
md
ca
ca
33
44
55
66
77
1= sperm draft; 2-7 ant spermatozoa
DIVERSITY OF ANT SPERM
Cambridge University Press 1987