10 years

1 year

1 month

100 years

proteins

electrical impulses

hormonal

telegraph

bipolar neurons

pyramidal neurons

multipolar neurons

Purkinje neurons

1 foot per second

150 meters per second

100 miles per hour

1 meter per second

brains

spinal cord

all of the above

a nerve

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body

wire

nerve

the brain

muscle

skin cells

liver cells

muscle cells

stem cells

stem cells

prison cells

muscle cells

glial cells