they do not have a nucleus

they are very long compared to other cells in the body

they regenerate very quickly

they help carry oxygen to different parts of your body

1 meter per second

150 meters per second

100 miles per hour

1 foot per second

a nerve

brains

all of the above

spinal cord

Purkinje neurons

pyramidal neurons

multipolar neurons

bipolar neurons

electrical impulses

hormonal

proteins

telegraph

skin cells

stem cells

muscle cells

liver cells

stem cells

prison cells

glial cells

muscle cells

1 year

10 years

1 month

100 years

nerve

the brain

wire

muscle