they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

skin cells

liver cells

stem cells

muscle cells

muscle

wire

the brain

nerve

1 meter per second

150 meters per second

100 miles per hour

1 foot per second

a nerve

brains

all of the above

spinal cord

1 year

100 years

10 years

1 month

proteins

telegraph

electrical impulses

hormonal

muscle cells

glial cells

stem cells

prison cells

Purkinje neurons

bipolar neurons

pyramidal neurons

multipolar neurons