:07:03
Mr Hilltop, would you hop up on your feet
and stand beside this table?
:07:17
Nice hopping.
:07:21
Mr Hilltop,
:07:23
would you raise your left knee, please?
:07:30
You have just witnessed
a voluntary nerve impulse.
:07:34
It begins as a stimulus
from the cerebral cortex,
:07:37
passes through the brainstem
and to the muscles involved.
:07:40
Mr Hilltop, you may lower your knee.
:07:43
Reflex movements are those
which are made independently of the will,
:07:48
but are carried out along pathways
:07:50
which pass between the peripheral nervous
system and the central nervous system.
:07:54
You filthy, rotten, yellow son of a bitch.
:07:58
We are not aware of these impulses.
:08:00
Neither do we intend them
to carry out our contraction of muscles.
:08:04
Yet, as you can see, they work by themselves.
:08:07
But what if we block the nerve impulse
by simply applying local pressure,
:08:11
which can be done
with any ordinary metal clamp
:08:14
just at the swelling
on the posterior nerve roots
:08:19
for, say... five or six seconds?
:08:28
Why, you mother-grabbing bastard.
:08:31
As you can see,
all communication is shut off.
:08:37
In spite of our mechanical magnificence,
:08:41
if it were not for this continuous stream
of motor impulses,
:08:46
we would collapse
:08:48
like a bunch of broccoli.
:08:56
In conclusion, it should be noted...
:08:59
- Give him an extra dollar.
- Extra dollar. Yes, sir.