spinal cord

brains

all of the above

a nerve

Purkinje neurons

bipolar neurons

multipolar neurons

pyramidal neurons

muscle

nerve

wire

the brain

hormonal

telegraph

proteins

electrical impulses

muscle cells

glial cells

prison cells

stem cells

they do not have a nucleus

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they regenerate very quickly

1 meter per second

100 miles per hour

1 foot per second

150 meters per second

100 years

10 years

1 month

1 year

muscle cells

skin cells

liver cells

stem cells