Question

Rewrite the term in the correct order so as to be in a logical sequence.
Graffian follicle, ostium, uterus, fallopian tube

Answer 1

Hint: The female reproductive system is a complex structure. The uterus is the main organ where the embryo develops into a foetus. The graafian follicle is the site at which the ovum develops. Fallopian tube connects the ovary to the uterus.

Complete answer:
To solve this question, we must know about the process of reproduction.
The pathway of the female egg is as follows-
The graafian follicle contains the secondary oocytes. After the first meiotic division, the primary follicle matures into the secondary follicle. The second division leads to the formation of graafian follicle.

Ostium- Ostium refers to the opening of the fallopian tube. Through this opening the ovum enters the fallopian tube for fertilisation.
Fallopian tube- It is the connecting tube between the ovary and the uterus. The wall of the fallopian tube comprises ciliated cells which help in the movement of the egg. It is the region where fertilisation of the egg and the perm takes place. The fertilised egg then further moves to the uterus for implantation.
Uterus- It is a muscular hollow structure which is capable of expanding. It is located in the female pelvis between the bladder and the rectum. The fertilised egg implants itself in the walls of the uterus till the entire gestation and childbirth.

Hence, the correct sequence is Graffian follicles, ostium, fallopian tube, uterus.

Note: The reproduction in humans involves release of ovum by the ovary followed by the fertilisation with the male sperm in the fallopian tube and then implantation of the fertilised egg in the uterus and development of foetus. At the time of child birth, the uterus begins to contract, facilitating the child's birth through vagina.