they help carry oxygen to different parts of your body

they regenerate very quickly

they are very long compared to other cells in the body

they do not have a nucleus

stem cells

skin cells

liver cells

muscle cells

muscle

wire

the brain

nerve

Purkinje neurons

multipolar neurons

bipolar neurons

pyramidal neurons

10 years

100 years

1 month

1 year

1 foot per second

1 meter per second

100 miles per hour

150 meters per second

glial cells

prison cells

stem cells

muscle cells

electrical impulses

telegraph

proteins

hormonal

a nerve

spinal cord

all of the above

brains