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