the brain

muscle

wire

nerve

1 month

1 year

10 years

100 years

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

multipolar neurons

Purkinje neurons

bipolar neurons

pyramidal neurons

glial cells

stem cells

muscle cells

prison cells

hormonal

electrical impulses

telegraph

proteins

100 miles per hour

1 meter per second

1 foot per second

150 meters per second

stem cells

muscle cells

liver cells

skin cells

all of the above

spinal cord

a nerve

brains