prison cells

glial cells

stem cells

muscle cells

hormonal

electrical impulses

proteins

telegraph

skin cells

stem cells

muscle cells

liver cells

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

brains

all of the above

spinal cord

a nerve

multipolar neurons

pyramidal neurons

Purkinje neurons

bipolar neurons

150 meters per second

100 miles per hour

1 foot per second

1 meter per second

wire

muscle

the brain

nerve

1 year

100 years

1 month

10 years