Nervous System

10 years

100 years

1 year

1 month

spinal cord

all of the above

brains

a nerve

muscle cells

stem cells

liver cells

skin cells

they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

stem cells

prison cells

glial cells

muscle cells

bipolar neurons

pyramidal neurons

multipolar neurons

Purkinje neurons

wire

the brain

nerve

muscle

1 meter per second

1 foot per second

150 meters per second

100 miles per hour

proteins

hormonal

electrical impulses

telegraph