the brain

wire

muscle

nerve

hormonal

electrical impulses

proteins

telegraph

muscle cells

liver cells

skin cells

stem cells

all of the above

spinal cord

brains

a nerve

stem cells

glial cells

prison cells

muscle cells

they do not have a nucleus

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

10 years

1 month

1 year

100 years

bipolar neurons

multipolar neurons

Purkinje neurons

pyramidal neurons

1 foot per second

1 meter per second

150 meters per second

100 miles per hour