Nervous System

electrical impulses

proteins

telegraph

hormonal

1 meter per second

1 foot per second

150 meters per second

100 miles per hour

they help carry oxygen to different parts of your body

they do not have a nucleus

they are very long compared to other cells in the body

they regenerate very quickly

stem cells

muscle cells

liver cells

skin cells

muscle

the brain

nerve

wire

10 years

1 year

100 years

1 month

multipolar neurons

bipolar neurons

Purkinje neurons

pyramidal neurons

all of the above

a nerve

spinal cord

brains

muscle cells

glial cells

stem cells

prison cells