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