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