spinal cord

a nerve

brains

all of the above

glial cells

stem cells

prison cells

muscle cells

10 years

1 year

100 years

1 month

muscle cells

liver cells

skin cells

stem cells

Purkinje neurons

multipolar neurons

bipolar neurons

pyramidal neurons

they regenerate very quickly

they are very long compared to other cells in the body

they do not have a nucleus

they help carry oxygen to different parts of your body

electrical impulses

telegraph

hormonal

proteins

the brain

wire

nerve

muscle

100 miles per hour

1 meter per second

1 foot per second

150 meters per second