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