a nerve

brains

spinal cord

all of the above

proteins

hormonal

electrical impulses

telegraph

multipolar neurons

pyramidal neurons

bipolar neurons

Purkinje neurons

glial cells

stem cells

prison cells

muscle cells

they regenerate very quickly

they help carry oxygen to different parts of your body

they do not have a nucleus

they are very long compared to other cells in the body

100 miles per hour

150 meters per second

1 foot per second

1 meter per second

100 years

1 year

1 month

10 years

skin cells

liver cells

muscle cells

stem cells

muscle

nerve

the brain

wire