State the main function of the following:

Sperm duct.

Copy and complete the following by filling in the blanks 1 to 5 with appropriate words.

The human female gonads are ovaries. A maturing egg in the ovary is present in a sac of cells called ………(1) As the eggs grow lrger, the follicle enlarges and gets filled with a fluid and is now called the ………. (2) follicle. The process of releasing the egg from the ovary is called …… (3) The ovum is picked up by the oviducal funnel and fertilisation takes place in the …. (4) In about a week the blastocyst gets fixed in the endometrium of the uterus and this process is called ……….(5)

Given below is an example of certain structures and their special functional activities.

For example: Eye and vision.

On a similar pattern, complete the following:

Give the biological/technical terms for the following:

The onset of menstruation in a young girl.

Give the biological/technical terms for the following:

Structure which connects the placenta with the foetus

(a) Given below is a diagram of the lateral section of the testis of a man. Study the same and answer the questions which follow:

(i)Label the parts numbered 1 to 4 in the diagram.

(ii) State the functions of the parts labelled 1 and 3.

(iii) What is the significance of the testes being located in the scrotal sac outside the abdomen?

(iv) What is the role played by the inguinal canal?

(v) What is semen?

Name the following:

v. The structure formed by the villi of the embryo and the uterus of the mother

Choose the correct answer from the four options given below:

A single highly coiled tube where sperms are stored, gets concentrated and mature us known as:

Given below is an example of a certain structure and its special functional activity. On a similar pattern fill in the blanks with suitable functions:
Example: Chloroplast and Photosynthesis

iii. Seminiferous Tubule and _________.

Give the biological/technical terms for the following:

iii. Fixing of developing zygote on the uterine wall.