they do not have a nucleus

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

hormonal

proteins

telegraph

electrical impulses

1 foot per second

1 meter per second

100 miles per hour

150 meters per second

Purkinje neurons

pyramidal neurons

bipolar neurons

multipolar neurons

skin cells

liver cells

stem cells

muscle cells

100 years

1 month

10 years

1 year

the brain

muscle

wire

nerve

stem cells

prison cells

glial cells

muscle cells

spinal cord

all of the above

brains

a nerve