Nervous System

spinal cord

brains

all of the above

a nerve

150 meters per second

1 foot per second

1 meter 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

100 years

1 year

10 years

1 month

electrical impulses

hormonal

proteins

telegraph

stem cells

prison cells

glial cells

muscle cells

muscle

the brain

wire

nerve

liver cells

muscle cells

stem cells

skin cells

pyramidal neurons

Purkinje neurons

bipolar neurons

multipolar neurons