| (a) 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. |
Answer:
(a) (i) Functions of the Ovary:
(1) It produces female gametes (ova).
(2) It secretes female sex hormones.
(ii) Functions of Uterus:
(1) It supports and nourishes the developing foetus.
(2) It expands according to the growth of the baby.
(iii) Functions of Fallopian tubes:
(1) They carry eggs from the ovary to the uterus.
(2) They act as the site for fertilisation,
(b) Placenta is the connecting link between the mother's body and the baby. It is a disc embedded in the uterine wall. This special tissue contains villi on the embryo's side of the tissue. The mother's end of placenta has blood spaces, which surrounds the villi. Placenta functions as a site of exchange of materials between the blood of mother to the baby. The developing embryo generates certain waste substances that are also removed through placenta. Thus, the placenta serves as the nutritive, respiratory and excretory organ of the foetus.
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