10 years
1 year
100 years
1 month
electrical impulses
hormonal
telegraph
proteins
True or False: Damage to your nervous system can cause paralysis.
100 miles per hour
150 meters per second
1 foot per second
1 meter per second
the brain
muscle
wire
nerve
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
stem cells
muscle cells
glial cells
prison cells
pyramidal neurons
Purkinje neurons
bipolar neurons
multipolar neurons
brains
all of the above
spinal cord
a nerve
liver cells
skin cells