muscle cells

prison cells

glial cells

stem cells

brains

a nerve

all of the above

spinal cord

1 meter per second

150 meters per second

100 miles per hour

1 foot per second

proteins

hormonal

electrical impulses

telegraph

they regenerate very quickly

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

pyramidal neurons

bipolar neurons

multipolar neurons

Purkinje neurons

100 years

1 month

1 year

10 years

skin cells

muscle cells

stem cells

liver cells

the brain

muscle

nerve

wire