the brain

nerve

wire

muscle

pyramidal neurons

multipolar neurons

bipolar neurons

Purkinje neurons

they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

skin cells

stem cells

liver cells

muscle cells

a nerve

brains

spinal cord

all of the above

1 month

100 years

10 years

1 year

muscle cells

prison cells

stem cells

glial cells

proteins

hormonal

telegraph

electrical impulses

100 miles per hour

1 foot per second

150 meters per second

1 meter per second