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