prison cells

muscle cells

glial cells

stem cells

wire

muscle

the brain

nerve

multipolar neurons

pyramidal neurons

Purkinje neurons

bipolar neurons

1 year

10 years

100 years

1 month

they regenerate very quickly

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

brains

spinal cord

a nerve

all of the above

electrical impulses

proteins

telegraph

hormonal

muscle cells

liver cells

stem cells

skin cells

150 meters per second

1 foot per second

100 miles per hour

1 meter per second