the brain

nerve

wire

muscle

skin cells

stem cells

liver cells

muscle cells

proteins

telegraph

hormonal

electrical impulses

1 year

100 years

1 month

10 years

1 foot per second

100 miles per hour

150 meters per second

1 meter per second

muscle cells

stem cells

glial cells

prison cells

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

they do not have a nucleus

pyramidal neurons

multipolar neurons

bipolar neurons

Purkinje neurons

spinal cord

a nerve

all of the above

brains