the brain

muscle

wire

nerve

bipolar neurons

multipolar neurons

Purkinje neurons

pyramidal neurons

100 years

1 year

1 month

10 years

skin cells

liver cells

stem cells

muscle cells

1 foot per second

150 meters per second

1 meter per second

100 miles per hour

hormonal

proteins

electrical impulses

telegraph

all of the above

a nerve

spinal cord

brains

muscle cells

glial cells

prison cells

stem cells

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body