they help carry oxygen to different parts of your body

they do not have a nucleus

they are very long compared to other cells in the body

they regenerate very quickly

spinal cord

all of the above

brains

a nerve

Purkinje neurons

bipolar neurons

pyramidal neurons

multipolar neurons

1 year

10 years

100 years

1 month

muscle cells

glial cells

stem cells

prison cells

muscle cells

stem cells

skin cells

liver cells

muscle

nerve

the brain

wire

1 meter per second

100 miles per hour

1 foot per second

150 meters per second

hormonal

electrical impulses

telegraph

proteins