Nervous System

wire

nerve

muscle

the brain

hormonal

proteins

telegraph

electrical impulses

a nerve

all of the above

brains

spinal cord

they help carry oxygen to different parts of your body

they regenerate very quickly

they are very long compared to other cells in the body

they do not have a nucleus

100 years

1 year

10 years

1 month

muscle cells

glial cells

prison cells

stem cells

stem cells

muscle cells

skin cells

liver cells

150 meters per second

1 meter per second

100 miles per hour

1 foot per second

multipolar neurons

Purkinje neurons

bipolar neurons

pyramidal neurons