Thanks for your query.
is the ability of sperm to move properly towards an egg. This is one of the good 'quality' of the sperm, which is necessary for successful pregnancies,
Sperm which do not move will not reach the egg in order to fertilize it.
sperm aggregates to form mobile trains because they are better suited to pass the viscous environment of the female reproductive tract.
Successful fertilization depends on the ability of sperm to penetrate the eggs.
The sperm motility is depends upon changes in intracellular ion concentration.
intracellular ion concentration also contribute to the activation of sperm motility.
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