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