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