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