stem cells

muscle cells

liver cells

skin cells

they do not have a nucleus

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they regenerate very quickly

multipolar neurons

pyramidal neurons

Purkinje neurons

bipolar neurons

the brain

wire

muscle

nerve

prison cells

stem cells

muscle cells

glial cells

100 miles per hour

150 meters per second

1 foot per second

1 meter per second

100 years

10 years

1 year

1 month

hormonal

electrical impulses

telegraph

proteins

spinal cord

all of the above

brains

a nerve