spinal cord

all of the above

brains

a nerve

electrical impulses

hormonal

proteins

telegraph

muscle

wire

the brain

nerve

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

Purkinje neurons

multipolar neurons

pyramidal neurons

bipolar neurons

1 foot per second

1 meter per second

150 meters per second

100 miles per hour

muscle cells

liver cells

skin cells

stem cells

10 years

100 years

1 month

1 year

glial cells

muscle cells

stem cells

prison cells