telegraph

electrical impulses

proteins

hormonal

pyramidal neurons

bipolar neurons

multipolar neurons

Purkinje neurons

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

prison cells

muscle cells

glial cells

stem cells

the brain

nerve

muscle

wire

stem cells

skin cells

muscle cells

liver cells

all of the above

brains

a nerve

spinal cord

100 miles per hour

1 meter per second

150 meters per second

1 foot per second

100 years

1 year

1 month

10 years