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