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