brains

spinal cord

all of the above

a nerve

1 month

100 years

1 year

10 years

they regenerate very quickly

they are very long compared to other cells in the body

they do not have a nucleus

they help carry oxygen to different parts of your body

nerve

wire

the brain

muscle

multipolar neurons

bipolar neurons

pyramidal neurons

Purkinje neurons

1 meter per second

1 foot per second

100 miles per hour

150 meters per second

glial cells

prison cells

stem cells

muscle cells

liver cells

stem cells

skin cells

muscle cells

hormonal

electrical impulses

telegraph

proteins