nerve

wire

muscle

the brain

Purkinje neurons

bipolar neurons

pyramidal neurons

multipolar neurons

100 miles per hour

150 meters per second

1 meter per second

1 foot per second

electrical impulses

hormonal

telegraph

proteins

glial cells

stem cells

muscle cells

prison cells

1 year

100 years

10 years

1 month

muscle cells

stem cells

liver cells

skin cells

they regenerate very quickly

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they do not have a nucleus

a nerve

brains

spinal cord

all of the above