they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

glial cells

prison cells

stem cells

muscle cells

pyramidal neurons

Purkinje neurons

multipolar neurons

bipolar neurons

the brain

muscle

wire

nerve

liver cells

skin cells

stem cells

muscle cells

1 foot per second

1 meter per second

150 meters per second

100 miles per hour

spinal cord

all of the above

brains

a nerve

telegraph

proteins

hormonal

electrical impulses

10 years

1 month

100 years

1 year