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