spinal cord

brains

all of the above

a nerve

glial cells

stem cells

prison cells

muscle cells

100 years

10 years

1 month

1 year

stem cells

muscle cells

skin cells

liver cells

pyramidal neurons

multipolar neurons

bipolar neurons

Purkinje neurons

proteins

hormonal

electrical impulses

telegraph

150 meters per second

100 miles per hour

1 foot per second

1 meter per second

the brain

wire

nerve

muscle

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