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

liver cells

skin cells

muscle cells

stem cells

proteins

electrical impulses

hormonal

telegraph

glial cells

stem cells

prison cells

muscle cells

all of the above

brains

spinal cord

a nerve

bipolar neurons

Purkinje neurons

multipolar neurons

pyramidal neurons

100 years

10 years

1 year

1 month

nerve

wire

the brain

muscle

1 foot per second

150 meters per second

1 meter per second

100 miles per hour