all of the above

brains

a nerve

spinal cord

telegraph

proteins

hormonal

electrical impulses

Purkinje neurons

bipolar neurons

pyramidal neurons

multipolar neurons

they do not have a nucleus

they are very long compared to other cells in the body

they regenerate very quickly

they help carry oxygen to different parts of your body

1 month

100 years

1 year

10 years

stem cells

muscle cells

skin cells

liver cells

the brain

wire

muscle

nerve

1 meter per second

1 foot per second

100 miles per hour

150 meters per second

glial cells

prison cells

stem cells

muscle cells