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