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