What are the events taking place in the ovary and uterus during follicular phase of the menstrual cycle?

Meiotic division during oogenesis is different from that in spermatogenesis. Explain how and why?

Mark the odd one in each series.

1. Scrotum, rete testis, Fallopian tube, vas deferens.
2. Ovary, uterus, vagina, ejaculatory duct.
3. Prostate, testis, seminal vesicles, Cowper's gland.
4. Fallopian tubes, vagina, uterus, ovaries.

On the basis of the functions mentioned below, identify each one correctly.

1. It helps in the movement of spermatozoan in a fluid medium.
2. It contains hydrolytic enzymes and is used to contact and penetrate the egg during fertilisation.

What is seminal plasma? What are its components?

Why are the human testes located outside the abdominal cavity? Name the pouch in which they are present.

Mention the number of cells in the following stages:

S. No	Embryonic stages	No. of cells
(i)	Zygote	______________
(ii)	Morula	______________
(iii)	Blastocyst	______________

Mention the importance of LH surge during menstrual cycle.

Label a, b, c in the following diagram.

Given below is a flow chart showing ovarian changes during menstrual cycle. Fill in the spaces with the hormonal factor(s) responsible for the events shown.