Nervous System

hormonal

electrical impulses

proteins

telegraph

nerve

muscle

the brain

wire

multipolar neurons

Purkinje neurons

pyramidal neurons

bipolar neurons

stem cells

liver cells

muscle cells

skin cells

spinal cord

a nerve

brains

all of the above

1 year

10 years

100 years

1 month

prison cells

stem cells

glial cells

muscle cells

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body

100 miles per hour

1 foot per second

1 meter per second

150 meters per second