telegraph
proteins
hormonal
electrical impulses
stem cells
skin cells
liver cells
muscle cells
they regenerate very quickly
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
1 foot per second
150 meters per second
100 miles per hour
1 meter per second
prison cells
glial cells
True or False: Damage to your nervous system can cause paralysis.
all of the above
brains
spinal cord
a nerve
bipolar neurons
pyramidal neurons
Purkinje neurons
multipolar neurons
muscle
the brain
nerve
wire
1 year
10 years
1 month
100 years