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

bipolar neurons

pyramidal neurons

Purkinje neurons

multipolar neurons

electrical impulses

hormonal

telegraph

proteins

brains

all of the above

spinal cord

a nerve

muscle

wire

nerve

the brain

1 foot per second

100 miles per hour

1 meter per second

150 meters per second

10 years

1 year

100 years

1 month

muscle cells

stem cells

prison cells

glial cells

muscle cells

stem cells

liver cells

skin cells