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