they are very long compared to other cells in the body

they regenerate very quickly

they do not have a nucleus

they help carry oxygen to different parts of your body

100 miles per hour

1 foot per second

1 meter per second

150 meters per second

1 month

100 years

10 years

1 year

wire

the brain

muscle

nerve

electrical impulses

telegraph

hormonal

proteins

Purkinje neurons

pyramidal neurons

multipolar neurons

bipolar neurons

liver cells

muscle cells

skin cells

stem cells

muscle cells

glial cells

prison cells

stem cells

all of the above

brains

a nerve

spinal cord