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