wire

nerve

the brain

muscle

10 years

100 years

1 month

1 year

they regenerate very quickly

they are very long compared to other cells in the body

they do not have a nucleus

they help carry oxygen to different parts of your body

a nerve

all of the above

brains

spinal cord

skin cells

liver cells

muscle cells

stem cells

telegraph

electrical impulses

hormonal

proteins

Purkinje neurons

multipolar neurons

bipolar neurons

pyramidal neurons

150 meters per second

100 miles per hour

1 meter per second

1 foot per second

glial cells

stem cells

muscle cells

prison cells