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