nerve

muscle

the brain

wire

electrical impulses

hormonal

proteins

telegraph

brains

spinal cord

all of the above

a nerve

bipolar neurons

multipolar neurons

pyramidal neurons

Purkinje neurons

100 years

1 year

1 month

10 years

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

100 miles per hour

1 foot per second

1 meter per second

150 meters per second

liver cells

stem cells

skin cells

muscle cells

stem cells

glial cells

muscle cells

prison cells