they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

prison cells

glial cells

stem cells

muscle cells

muscle cells

liver cells

stem cells

skin cells

Purkinje neurons

pyramidal neurons

multipolar neurons

bipolar neurons

muscle

the brain

nerve

wire

telegraph

hormonal

electrical impulses

proteins

all of the above

brains

a nerve

spinal cord

1 month

100 years

10 years

1 year

150 meters per second

1 meter per second

1 foot per second

100 miles per hour