stem cells

skin cells

liver cells

muscle cells

brains

spinal cord

all of the above

a nerve

muscle

the brain

nerve

wire

1 meter per second

150 meters per second

1 foot per second

100 miles per hour

bipolar neurons

multipolar neurons

Purkinje neurons

pyramidal neurons

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 month

10 years

1 year

100 years

prison cells

muscle cells

glial cells

stem cells

proteins

electrical impulses

telegraph

hormonal