Review Note
Last Update: 08/26/2024 12:07 PM
Current Deck: 6108::Physiology::Male Reproduction
Published
Fields:
Front
explain the 8 stages of the cycle
Back
If you go
along the seminiferous tubule, every slice is at a slightly different stage of
the cycle of the seminiferous epithelium. ALL CYLCING INDEPENDENTLY. Always
multiple points where there is sperm being released into the lumen.
8
different stages - think of the bottom BM and lumen at the top
Down the
bottom we have very immature spermatagonia.
Up the
top we have the spermatids.
8
different stages of the cycles seminiferous epithelium.
labelled 1-8 laterally along the page. If
we were at a seminiferous tubule going along here, that at each slice you are
going through 1-8 in that one plane. Takes in the bull 13.5 days in the bull to
go 1-8 to get the elongated spermatids at the top to be released. Once they get
to 8 they go back to 1 again. When they go from 8 back to 1 they release sperm
into the lumen.
Constant
supply of sperm because they are all sitting at different stages.

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