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

they regenerate very quickly

wire

the brain

nerve

muscle

1 year

10 years

1 month

100 years

skin cells

stem cells

muscle cells

liver cells

glial cells

muscle cells

stem cells

prison cells

multipolar neurons

pyramidal neurons

bipolar neurons

Purkinje neurons

1 foot per second

1 meter per second

150 meters per second

100 miles per hour

spinal cord

a nerve

all of the above

brains

telegraph

electrical impulses

hormonal

proteins