100 years
10 years
1 month
1 year
hormonal
proteins
electrical impulses
telegraph
they regenerate very quickly
they are very long compared to other cells in the body
they help carry oxygen to different parts of your body
they do not have a nucleus
spinal cord
a nerve
brains
all of the above
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
skin cells
liver cells
stem cells
muscle cells
glial cells
prison cells
nerve
the brain
wire
muscle
pyramidal neurons
multipolar neurons
Purkinje neurons
bipolar neurons