skin cells

muscle cells

liver cells

stem cells

they do not have a nucleus

they are very long compared to other cells in the body

they regenerate very quickly

they help carry oxygen to different parts of your body

multipolar neurons

bipolar neurons

pyramidal neurons

Purkinje neurons

a nerve

spinal cord

brains

all of the above

1 month

10 years

100 years

1 year

100 miles per hour

1 foot per second

150 meters per second

1 meter per second

telegraph

electrical impulses

proteins

hormonal

muscle cells

glial cells

stem cells

prison cells

the brain

wire

nerve

muscle