the brain

muscle

wire

nerve

spinal cord

all of the above

brains

a nerve

hormonal

electrical impulses

proteins

telegraph

1 month

1 year

10 years

100 years

multipolar neurons

Purkinje neurons

bipolar neurons

pyramidal neurons

stem cells

liver cells

skin cells

muscle cells

they do not have a nucleus

they help carry oxygen to different parts of your body

they regenerate very quickly

they are very long compared to other cells in the body

prison cells

stem cells

muscle cells

glial cells

100 miles per hour

1 meter per second

150 meters per second

1 foot per second