Question

Short Answer Questions:

1. Define the following: coordination and nerve.
2. How do neurons transmit a message?
3. Name the three kinds of nerves. Write their functions and give example of each.
4. Differentiate between the peripheral and autonomic
nervous system.
5. Describe the working of the brain.

Long Answer Questions:

1. Describe the structure of a neuron with the help of a labelled diagram.
2. Describe the structure of the brain. List the functions of each part.
3. Describe the spinal cord. Write its functions also.​

Answer 1

Answer:

question describe the working of brain

Ans:The brain works like a big computer. It processes information that it receives from the senses and body, and sends messages back to the body. But the brain can do much more than a machine can: humans think and experience emotions with their brain, and it is the root of human intelligence.

Answer 2

Answer:

1) Bringing about the different processes in the proper sequence is called coordination.

A cells which conduct impulses from one place to another in body are called nerves.

2) Information is collected by dendrites of neuron . The chemical process start and electric impulses generated and conduct from dendrites to cell body , from cell body to axon and from axon to terminal. These impulses transferred information from one nerve cell to another.

3) I) Sensory neuron : Conduct impulses from sensory organs to brain and spinal cord.

II) Motor neuron : Conduct impulses from brain and spinal cord to muscle and glands.

III) Association neuron : Perform the function of integration in the nervous system.