1 month

1 year

10 years

100 years

muscle cells

stem cells

liver cells

skin cells

electrical impulses

hormonal

proteins

telegraph

brains

spinal cord

a nerve

all of the above

glial cells

muscle cells

prison cells

stem cells

100 miles per hour

1 foot per second

1 meter per second

150 meters per second

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

bipolar neurons

multipolar neurons

pyramidal neurons

Purkinje neurons

nerve

the brain

muscle

wire