electrical impulses

proteins

telegraph

hormonal

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body

pyramidal neurons

Purkinje neurons

multipolar neurons

bipolar neurons

1 foot per second

100 miles per hour

1 meter per second

150 meters per second

10 years

1 year

1 month

100 years

liver cells

stem cells

muscle cells

skin cells

all of the above

spinal cord

brains

a nerve

stem cells

glial cells

muscle cells

prison cells

the brain

nerve

wire

muscle