1 foot per second

100 miles per hour

1 meter per second

150 meters per second

brains

a nerve

spinal cord

all of the above

stem cells

liver cells

muscle cells

skin cells

wire

nerve

the brain

muscle

telegraph

hormonal

proteins

electrical impulses

stem cells

prison cells

glial cells

muscle cells

multipolar neurons

bipolar neurons

pyramidal neurons

Purkinje neurons

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

1 year

10 years

100 years

1 month