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

the brain

wire

muscle

nerve

prison cells

muscle cells

glial cells

stem cells

10 years

1 month

1 year

100 years

multipolar neurons

bipolar neurons

pyramidal neurons

Purkinje neurons

100 miles per hour

1 meter per second

150 meters per second

1 foot per second

muscle cells

skin cells

liver cells

stem cells

hormonal

telegraph

electrical impulses

proteins

brains

all of the above

spinal cord

a nerve