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