a nerve

brains

spinal cord

all of the above

the brain

muscle

nerve

wire

1 year

10 years

100 years

1 month

skin cells

liver cells

stem cells

muscle cells

muscle cells

stem cells

prison cells

glial cells

they regenerate very quickly

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

Purkinje neurons

multipolar neurons

bipolar neurons

pyramidal neurons

proteins

hormonal

telegraph

electrical impulses

100 miles per hour

1 meter per second

1 foot per second

150 meters per second