electrical impulses

proteins

hormonal

telegraph

bipolar neurons

multipolar neurons

pyramidal neurons

Purkinje neurons

150 meters per second

100 miles per hour

1 meter per second

1 foot per second

they regenerate very quickly

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they do not have a nucleus

1 month

10 years

1 year

100 years

stem cells

muscle cells

glial cells

prison cells

muscle cells

liver cells

skin cells

stem cells

the brain

wire

nerve

muscle

spinal cord

a nerve

brains

all of the above