Write the functions of each of the following parts in a human female reproductive system:
(i) Ovary
(ii) Uterus
(iii) Fallopian tube
(b) Write the structure and functions of placenta in a human female.
Answers
Answer:
Ovary : Help in reproduction.
Uterus : It carries baby.
Fallopian tube : It carries sperms to the ovary.
Explanation:
(a) Functions of the Ovary:-
(i) It produces female gametes (ova). One ovum is released by one ovary
every month.
(ii) It secretes female sex hormones (estrogen and progesterone).
Functions of the Uterus:-
(i) It protects and nourishes the developing foetus.
(ii) It provides sufficient space for the growing embriyo.
Functions of Fallopian tube:-
(i) It passes down the ovum towards the uterus released by the ovary.
(ii) It acts as the site of fertilisation.
(b) Structure of the placenta in human female:-
Placenta is a disc embedded in the uterine wall which is the connecting link between the mother's body and the baby.
It contains villi on the embryo’s side of the tissue. The mother’s end of the placenta has
blood spaces which surround the villi.
Functions of placenta in human female:
Placenta functions as a site of exchange of materials between the blood of mother and foetus.
It provides a large surface area for glucose and oxygen to pass from the mother to the baby.
The foetus gives away waste products and carbon dioxide to the mother’s
blood for excretion.
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