glial cells

stem cells

prison cells

muscle cells

telegraph

proteins

hormonal

electrical impulses

multipolar neurons

bipolar neurons

pyramidal neurons

Purkinje neurons

a nerve

brains

spinal cord

all of the above

skin cells

stem cells

liver cells

muscle cells

they do not have a nucleus

they help carry oxygen to different parts of your body

they regenerate very quickly

they are very long compared to other cells in the body

wire

muscle

nerve

the brain

1 month

10 years

1 year

100 years

1 meter per second

150 meters per second

100 miles per hour

1 foot per second