telegraph

electrical impulses

proteins

hormonal

pyramidal neurons

multipolar neurons

bipolar neurons

Purkinje neurons

1 foot per second

100 miles per hour

150 meters per second

1 meter per second

wire

muscle

the brain

nerve

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

they do not have a nucleus

1 month

1 year

100 years

10 years

brains

a nerve

spinal cord

all of the above

muscle cells

skin cells

liver cells

stem cells

glial cells

prison cells

stem cells

muscle cells