Advertisements
Advertisements
प्रश्न
Answer the following question.
What is capacitation? Give its importance.
उत्तर
Capacitation generally requires 5-6 hours during which the acrosome membrane becomes thin, Ca++ enters the sperm, and sperm tails begin to show rapid whiplash movements.
As a result of capacitation, sperms become extra active and begin to start moving upwards from the vagina to the uterus and to the oviducts. Prostaglandins activate the sperms. The vestibular secretions of the female also enhance sperm's motility. The sperms swim at an average speed of 1.5 to 3.0 mm/min and reach the ampulla. The contraction of uterus and fallopian tubes stimulated by oxytocin of females also aids in the movement of sperm. After capacitation the sperms may reach the ampulla within 5 minutes.
APPEARS IN
संबंधित प्रश्न
Choose the odd one in each of the following:
Sperm; implantation; fertilization; ovum; afterbirth
Name the following:
Organ where fertilization occurs.
The following diagram represents the vertical sectional view of the human female reproductive system.
How does the uterus prepare for the reception of zygote?
How is the fetus protected?
Complete the following sentences with appropriate word:
The process of releasing an egg from the ovary is called _________.
Multiple choice question.
In human female, the fertilized egg gets implanted in uterus _______.
Sperms undergo the following changes in the epididymis EXCEPT ______
In which part of the human female reproductive system do the following events take place?
Fertilization
What is sex chromosomes?
Choose the odd one out from the group of terms given below and write the category for the remaining terms:
