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