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