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