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