Nervous System

brains

spinal cord

a nerve

all of the above

hormonal

proteins

electrical impulses

telegraph

1 foot per second

1 meter per second

150 meters per second

100 miles per hour

nerve

wire

the brain

muscle

100 years

1 month

10 years

1 year

muscle cells

stem cells

skin cells

liver 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

glial cells

muscle cells

prison cells

stem cells

pyramidal neurons

bipolar neurons

Purkinje neurons

multipolar neurons