a nerve

all of the above

spinal cord

brains

electrical impulses

telegraph

hormonal

proteins

they do not have a nucleus

they help carry oxygen to different parts of your body

they regenerate very quickly

they are very long compared to other cells in the body

1 meter per second

100 miles per hour

150 meters per second

1 foot per second

1 month

1 year

10 years

100 years

Purkinje neurons

multipolar neurons

bipolar neurons

pyramidal neurons

stem cells

muscle cells

prison cells

glial cells

the brain

muscle

wire

nerve

skin cells

liver cells

muscle cells

stem cells