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

1 meter per second

150 meters per second

1 foot per second

100 miles per hour

100 years

1 year

1 month

10 years

skin cells

stem cells

liver cells

muscle cells

glial cells

prison cells

muscle cells

stem cells

electrical impulses

telegraph

proteins

hormonal

pyramidal neurons

Purkinje neurons

multipolar neurons

bipolar neurons

spinal cord

brains

all of the above

a nerve

wire

muscle

the brain

nerve