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