More about the Divisions of the Nervous System
Picture provided via Wikimedia Commons by William Crochot
Refer to the diagram on the left to answer the questions below. You will need these gap fillers:
central • motor • peripheral
sensory • spinal cord (x2)
a The neurons in the skin allow the brain to receive information about touch, heat and cold and other environmental information.
b In the picture on the left, the blue lines represent the nervous system.
c The yellow parts of the diagram represent the nervous system.
d The long bundle of fibres that can be seen running vertically along the backbone and coloured yellow is the .
e The brain initiates an order that allows you to type the answer to this question. This requires the functioning of a neuron in the peripheral nervous system.
f If you accidentally touch a hot surface, your hand is withdrawn in a reflex reaction initiated without the brain's inital activity. This reflex is controlled by the .