100 miles per hour

150 meters per second

1 meter per second

1 foot per second

multipolar neurons

bipolar neurons

pyramidal neurons

Purkinje neurons

brains

spinal cord

a nerve

all of the above

the brain

muscle

nerve

wire

they help carry oxygen to different parts of your body

they regenerate very quickly

they are very long compared to other cells in the body

they do not have a nucleus

100 years

1 month

10 years

1 year

stem cells

muscle cells

prison cells

glial cells

muscle cells

stem cells

liver cells

skin cells

hormonal

telegraph

proteins

electrical impulses