Sperm Flashcards
1
Q
Three phases
A
Proliferation
Meiosis
Differentiation
2
Q
Differentiation
A
- Golgi phase = acrosomc vesicle
Formation - cap phase = acroscomic vesicle spreading over the nucleus
- acrosomal phase = nuclear and cytoplasmic elongation
- maturation phase = final assembly that forms a spermatozoon
3
Q
Days for species
A
- bull = 61
- ram = 47
- boar = 39
- stallion = 55
- rabbit = 48
4
Q
Postcapacitation events
A
- hyperactive motility
- binding to ZP
- acrosomal reaction
- penetration of ZP
- sperm-oocyte membrane fusion
- sperm engulfed
- decondensation of sperm nucleus
- formation of male pronucleus
5
Q
Acrosomal reaction
A
- the acrosomal reaction is an orderly fusion of the spermatozoa plasma membrane and the outer acrosomal membrane
- release of acrosomal enzymes allows the spermatozoon to digest its way through the ZP
