they help carry oxygen to different parts of your body

they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body

stem cells

glial cells

prison cells

muscle cells

1 year

100 years

1 month

10 years

Purkinje neurons

pyramidal neurons

multipolar neurons

bipolar neurons

skin cells

stem cells

muscle cells

liver cells

150 meters per second

1 meter per second

1 foot per second

100 miles per hour

a nerve

spinal cord

brains

all of the above

muscle

the brain

wire

nerve

hormonal

proteins

telegraph

electrical impulses