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