Draw a neat and labelled diagram of a nerve cell.

Given alongside is the figure of a median section of an organ. Study the same and answer the following questions :

1. Name the organ and write its location in our body.
2. Label the guidelines 1 to 4.
3. Write one important function of hypothalamus.
4. Which of the structures from 1 to 4 is considered as the master gland of the body ?
5. Mention the basic structural unit of the organ shown in the figure and the organ system to which it belongs.

A part of our nervous system is shown alongside. Study the same and answer the following questions :

1. Identify the figure and name it.
2. Define the structure shown.
3. Label the part shown as X.
4. Write the name of the protective, tubular covering of the structure shown.
5. Mention the names of the three kinds of the structure that is shown in the figure.

Briefly describe the structure of the cerebrum in human brain and mention its functions.