nerve

muscle

the brain

wire

electrical impulses

telegraph

hormonal

proteins

bipolar neurons

Purkinje neurons

pyramidal neurons

multipolar neurons

1 month

100 years

10 years

1 year

stem cells

muscle cells

glial cells

prison cells

brains

spinal cord

a nerve

all of the above

they regenerate very quickly

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

stem cells

liver cells

skin cells

muscle cells

150 meters per second

100 miles per hour

1 foot per second

1 meter per second