the brain

wire

nerve

muscle

hormonal

electrical impulses

telegraph

proteins

pyramidal neurons

Purkinje neurons

bipolar neurons

multipolar neurons

liver cells

stem cells

muscle cells

skin cells

glial cells

stem cells

prison cells

muscle cells

1 year

100 years

1 month

10 years

1 foot per second

150 meters per second

100 miles per hour

1 meter per second

spinal cord

all of the above

a nerve

brains

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