Nervous System

1 month

100 years

1 year

10 years

liver cells

skin cells

stem cells

muscle cells

electrical impulses

hormonal

telegraph

proteins

prison cells

glial cells

stem cells

muscle cells

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

multipolar neurons

pyramidal neurons

bipolar neurons

Purkinje neurons

wire

muscle

the brain

nerve

150 meters per second

1 foot per second

100 miles per hour

1 meter per second

a nerve

spinal cord

brains

all of the above