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

they regenerate very quickly

1 foot per second

1 meter per second

100 miles per hour

150 meters per second

glial cells

prison cells

muscle cells

stem cells

brains

spinal cord

a nerve

all of the above

proteins

telegraph

hormonal

electrical impulses

100 years

1 year

1 month

10 years

muscle cells

stem cells

skin cells

liver cells

multipolar neurons

Purkinje neurons

bipolar neurons

pyramidal neurons

wire

nerve

the brain

muscle