nerve

the brain

wire

muscle

muscle cells

stem cells

skin cells

liver cells

glial cells

stem cells

prison cells

muscle cells

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

they regenerate very quickly

a nerve

brains

spinal cord

all of the above

100 years

1 month

1 year

10 years

telegraph

electrical impulses

hormonal

proteins

1 meter per second

100 miles per hour

150 meters per second

1 foot per second

bipolar neurons

multipolar neurons

Purkinje neurons

pyramidal neurons