150 meters per second

1 meter per second

100 miles per hour

1 foot per second

electrical impulses

hormonal

proteins

telegraph

multipolar neurons

bipolar neurons

pyramidal neurons

Purkinje neurons

muscle

nerve

wire

the brain

liver cells

muscle cells

skin cells

stem cells

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

prison cells

glial cells

stem cells

muscle cells

spinal cord

all of the above

brains

a nerve

1 month

1 year

10 years

100 years