glial cells

prison cells

muscle cells

stem cells

stem cells

skin cells

muscle cells

liver cells

telegraph

hormonal

proteins

electrical impulses

muscle

wire

nerve

the brain

bipolar neurons

Purkinje neurons

multipolar neurons

pyramidal neurons

spinal cord

a nerve

all of the above

brains

they regenerate very quickly

they help carry oxygen to different parts of your body

they do not have a nucleus

they are very long compared to other cells in the body

150 meters per second

1 meter per second

1 foot per second

100 miles per hour

1 month

1 year

100 years

10 years