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