they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

brains

a nerve

all of the above

spinal cord

proteins

telegraph

hormonal

electrical impulses

the brain

wire

nerve

muscle

liver cells

skin cells

muscle cells

stem cells

stem cells

muscle cells

glial cells

prison cells

multipolar neurons

Purkinje neurons

pyramidal neurons

bipolar neurons

100 years

1 month

10 years

1 year

1 foot per second

100 miles per hour

1 meter per second

150 meters per second