they help carry oxygen to different parts of your body

they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body

1 foot per second

1 meter per second

150 meters per second

100 miles per hour

wire

the brain

nerve

muscle

muscle cells

skin cells

stem cells

liver cells

spinal cord

all of the above

brains

a nerve

Purkinje neurons

multipolar neurons

bipolar neurons

pyramidal neurons

electrical impulses

hormonal

telegraph

proteins

glial cells

prison cells

stem cells

muscle cells

100 years

1 month

10 years

1 year