Nervous System

stem cells

muscle cells

skin cells

liver cells

proteins

hormonal

electrical impulses

telegraph

150 meters per second

1 foot per second

100 miles per hour

1 meter per second

pyramidal neurons

bipolar neurons

multipolar neurons

Purkinje neurons

100 years

1 year

1 month

10 years

brains

all of the above

spinal cord

a nerve

wire

muscle

the brain

nerve

glial cells

muscle cells

prison cells

stem cells

they are very long compared to other cells in the body

they regenerate very quickly

they do not have a nucleus

they help carry oxygen to different parts of your body