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