brain and nervous system.
Indeed, nerve impulses are
active in your body at this exact
moment too. Nerves in your fin-
gertips are sending messages to
your brain regarding the weight
of this book that you are holding
in your hand, so that you lift the
book with a force suited to its
weight. In the meantime, stim-
uli are sent from your eyes,
nose, ears, feet and many other
parts of your body to your brain
as well.
Your brain evaluates these
incoming stimuli and sends rele-
vant responses to the concerned
parts of your body, which act ac-
cording to these responses. Now
let's recall all of these actions.
Many processes occur within
your body simultaneously. You
read a book while at the same
28
brain
spinal cord
Through the nerves all around your
body, your brain constantly re-
ceives stimuli from the rest of your
body. The brain evaluates these
stimuli and responds to the relevant
parts of your body. It is these an-
swers provided by the brain that en-
able you to move, see and hear.
