prison cells

muscle cells

stem cells

glial cells

1 meter per second

1 foot per second

100 miles per hour

150 meters per second

electrical impulses

proteins

telegraph

hormonal

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

they do not have a nucleus

spinal cord

brains

a nerve

all of the above

nerve

the brain

wire

muscle

1 year

100 years

1 month

10 years

muscle cells

stem cells

liver cells

skin cells

bipolar neurons

Purkinje neurons

pyramidal neurons

multipolar neurons