telegraph
hormonal
proteins
electrical impulses
1 meter per second
100 miles per hour
1 foot per second
150 meters per second
brains
all of the above
a nerve
spinal cord
the brain
muscle
wire
nerve
multipolar neurons
pyramidal neurons
bipolar neurons
Purkinje neurons
they help carry oxygen to different parts of your body
they are very long compared to other cells in the body
they do not have a nucleus
they regenerate very quickly
stem cells
liver cells
skin cells
muscle cells
glial cells
prison cells
100 years
10 years
1 year
1 month
True or False: Damage to your nervous system can cause paralysis.