Question
What is capacitation? Give its importance.
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Answer
- Capacitation is the process by which the sperms are made capable to swim up to the fallopian tubes. This process takes place in 5-6 hours.
- 50% of ejaculated sperms die due to unfavourable vaginal and uterine conditions.
- The remaining sperms are capacitated with the help of prostaglandin and vestibular secretions of female tract. It involves the changes in the membrane covering the acrosome.
- Due to capacitation, acrosome membrane becomes thin, Calcium ions enters the sperm and their tail begin to show rapid whiplash movements.
- Sperms become extra active and then they ascend upwards to reach fallopian tubes.
- After capacitation the sperms swim through the vagina and uterus and reach ampulla of fallopian tube within 5 minutes.
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