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