prison cells

muscle cells

stem cells

glial cells

electrical impulses

proteins

hormonal

telegraph

1 foot per second

1 meter per second

150 meters per second

100 miles per hour

brains

spinal cord

a nerve

all of the above

nerve

wire

the brain

muscle

multipolar neurons

pyramidal neurons

Purkinje neurons

bipolar neurons

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body

muscle cells

liver cells

stem cells

skin cells

1 year

1 month

100 years

10 years