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