Nervous System

brains

spinal cord

all of the above

a nerve

proteins

hormonal

telegraph

electrical impulses

stem cells

prison cells

glial cells

muscle cells

100 miles per hour

1 meter per second

150 meters per second

1 foot per second

muscle

the brain

nerve

wire

10 years

1 year

1 month

100 years

they are very long compared to other cells in the body

they regenerate very quickly

they help carry oxygen to different parts of your body

they do not have a nucleus

liver cells

skin cells

stem cells

muscle cells

bipolar neurons

pyramidal neurons

Purkinje neurons

multipolar neurons