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Question

Name the functions of the following

Corpus luteum

Endometrium

Acrosome

Sperm tail

Fimbriae


Solution

Corpus luteum secretes large amount of progesterone which is essential for the maintenance of endometrium of the uterus. This is formed from the graafian follicle after it unundergoes ovulation.The corpus luteum is yellow in color.

Endometrium is necessary for the implantation of the fertilised ovum, for contributing towards making of placenta and other events of pregnancy.

Acrosome is filled with enzymes that help in dissolving the outer cover of the ovum and entry of sperm nucleus. This is formed by the golgi body.

Sperm tail facilities motility of the sperm essential for reaching the ovum to fertilise it. It initially shows undulating movements but after capacitation , it shows whiplash type of movements.

Fimbriae are fingers-like projections at the mouth of fallopian tubules that help in collection of the ovum after ovulation


Biology
NCERT Textbook
Standard XII

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