Nervous System

10 years

100 years

1 month

1 year

nerve

the brain

muscle

wire

brains

a nerve

spinal cord

all of the above

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

electrical impulses

telegraph

hormonal

proteins

bipolar neurons

multipolar neurons

Purkinje neurons

pyramidal neurons

glial cells

muscle cells

stem cells

prison cells

liver cells

muscle cells

skin cells

stem cells

150 meters per second

100 miles per hour

1 meter per second

1 foot per second