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