muscle cells

stem cells

skin cells

liver cells

1 month

1 year

100 years

10 years

hormonal

proteins

electrical impulses

telegraph

muscle cells

prison cells

stem cells

glial cells

brains

all of the above

spinal cord

a nerve

they do not have a nucleus

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they regenerate very quickly

1 meter per second

100 miles per hour

1 foot per second

150 meters per second

multipolar neurons

Purkinje neurons

bipolar neurons

pyramidal neurons

muscle

the brain

wire

nerve