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

proteins

hormonal

telegraph

electrical impulses

the brain

nerve

wire

muscle

prison cells

glial cells

muscle cells

stem cells

all of the above

a nerve

brains

spinal cord

multipolar neurons

pyramidal neurons

Purkinje neurons

bipolar neurons

skin cells

stem cells

liver cells

muscle cells

100 miles per hour

1 foot per second

150 meters per second

1 meter per second

1 month

10 years

1 year

100 years