the brain

wire

nerve

muscle

1 year

100 years

1 month

10 years

muscle cells

stem cells

prison cells

glial cells

liver cells

skin cells

muscle cells

stem cells

they regenerate very quickly

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

proteins

hormonal

telegraph

electrical impulses

brains

all of the above

a nerve

spinal cord

1 meter per second

150 meters per second

1 foot per second

100 miles per hour

pyramidal neurons

bipolar neurons

multipolar neurons

Purkinje neurons