hormonal

electrical impulses

telegraph

proteins

muscle cells

prison cells

glial cells

stem cells

skin cells

stem cells

muscle cells

liver cells

a nerve

all of the above

spinal cord

brains

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they regenerate very quickly

they do not have a nucleus

100 years

10 years

1 year

1 month

muscle

nerve

the brain

wire

1 meter per second

100 miles per hour

1 foot per second

150 meters per second

multipolar neurons

pyramidal neurons

bipolar neurons

Purkinje neurons