skin cells

liver cells

muscle cells

stem cells

1 month

1 year

100 years

10 years

stem cells

glial cells

muscle cells

prison cells

muscle

wire

nerve

the brain

100 miles per hour

150 meters per second

1 foot per second

1 meter per second

electrical impulses

hormonal

telegraph

proteins

all of the above

brains

spinal cord

a nerve

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

pyramidal neurons

Purkinje neurons

bipolar neurons

multipolar neurons