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