Nervous System

wire

muscle

the brain

nerve

liver cells

stem cells

muscle cells

skin cells

they regenerate very quickly

they are very long compared to other cells in the body

they do not have a nucleus

they help carry oxygen to different parts of your body

1 month

1 year

100 years

10 years

prison cells

stem cells

glial cells

muscle cells

1 meter per second

1 foot per second

100 miles per hour

150 meters per second

all of the above

spinal cord

brains

a nerve

pyramidal neurons

bipolar neurons

multipolar neurons

Purkinje neurons

proteins

hormonal

electrical impulses

telegraph