they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

muscle cells

stem cells

prison cells

glial cells

multipolar neurons

pyramidal neurons

Purkinje neurons

bipolar neurons

liver cells

muscle cells

skin cells

stem cells

1 foot per second

150 meters per second

1 meter per second

100 miles per hour

all of the above

spinal cord

brains

a nerve

muscle

nerve

the brain

wire

telegraph

proteins

hormonal

electrical impulses

100 years

10 years

1 month

1 year