Nervous System

proteins

telegraph

hormonal

electrical impulses

100 years

1 year

10 years

1 month

spinal cord

a nerve

brains

all of the above

100 miles per hour

150 meters per second

1 foot per second

1 meter per second

they do not have a nucleus

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they regenerate very quickly

stem cells

glial cells

prison cells

muscle cells

wire

the brain

nerve

muscle

liver cells

skin cells

stem cells

muscle cells

Purkinje neurons

bipolar neurons

pyramidal neurons

multipolar neurons