Question

1. Fill in the blanks (be as creative as you want, as long as you explain why!):

The neurons and synapses systems of a brain are like a _________________ because….

Answer 1

Neurons and synapses systems of a brain are like wires ( nerves) and function boxes ( synapses)

Because:

1. The nerve are like the electric wires we have at home.
2. If we wish to stitch on the fan, we press a button on the electric board.
3. The wire connected to the the button sends an electrical signal wires of the fan.
4. The wire arising from the button meets the with the wires of the fan an convey the electrical signal to the fan.
5. This causes the fan to start moving.
6. The nerves in out brain are similar to the wires.
7. The carry information from the brain and to the brain in the electric form.
8. The nerves that carry information to brain are called sensory nerves and those that carry information from the brain to the rest of the body are motor nerves.
9. These nerve than synapse with different neurons in the brain and activates different parts of the brain.
10. Information from various sensory organs is integrated and final output signal is developed.
11. This signal is then conveyed via the motor neurons to the effector organs.
12. Example; The spinothalamic tract.
13. The spinothalamic tract carries sensory information about pain and temperature sensation.
14. The nerve synapse with the nerves in the thalamus,
15. In the thalamus, electrical information from the sensory organs is relayed to different parts of the thalamus.
16. From the thalamus, the sensory information is send to the higher centres like the primary somatosensory cortex. Here, the sensory information is analyzes and interpreted.
17. If the body needs to act on this sensory information, the nerves from the sensory cortex then synapse with the nerves of the motor cortex.
18. The nerve from the motor cortex then synapse with that anterior horn cells of the spinal cord and send electrical signal to the muscles. This stimulates them to perform the desired activity.