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