prison cells

glial cells

muscle cells

stem cells

hormonal

proteins

telegraph

electrical impulses

100 miles per hour

150 meters per second

1 foot per second

1 meter per second

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

1 year

10 years

1 month

100 years

liver cells

muscle cells

stem cells

skin cells

brains

spinal cord

all of the above

a nerve

wire

muscle

nerve

the brain

multipolar neurons

Purkinje neurons

pyramidal neurons

bipolar neurons