spinal cord

all of the above

a nerve

brains

glial cells

muscle cells

prison cells

stem cells

1 year

10 years

1 month

100 years

liver cells

skin cells

muscle cells

stem cells

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

muscle

nerve

wire

the brain

multipolar neurons

Purkinje neurons

pyramidal neurons

bipolar neurons

proteins

electrical impulses

telegraph

hormonal

150 meters per second

1 foot per second

100 miles per hour

1 meter per second