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

100 miles per hour

1 foot per second

150 meters per second

1 meter per second

prison cells

glial cells

muscle cells

stem cells

wire

nerve

the brain

muscle

brains

all of the above

a nerve

spinal cord

muscle cells

stem cells

skin cells

liver cells

10 years

1 year

100 years

1 month

proteins

telegraph

hormonal

electrical impulses

multipolar neurons

Purkinje neurons

pyramidal neurons

bipolar neurons