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

hormonal

electrical impulses

telegraph

proteins

liver cells

skin cells

stem cells

muscle cells

muscle

nerve

wire

the brain

Purkinje neurons

pyramidal neurons

bipolar neurons

multipolar neurons

prison cells

glial cells

stem cells

muscle cells

10 years

1 month

1 year

100 years

a nerve

brains

all of the above

spinal cord

100 miles per hour

1 foot per second

1 meter per second

150 meters per second