a nerve

brains

spinal cord

all of the above

telegraph

hormonal

proteins

electrical impulses

the brain

muscle

nerve

wire

1 month

1 year

100 years

10 years

they are very long compared to other cells in the body

they regenerate very quickly

they do not have a nucleus

they help carry oxygen to different parts of your body

muscle cells

stem cells

skin cells

liver cells

prison cells

stem cells

glial cells

muscle cells

150 meters per second

1 foot per second

1 meter per second

100 miles per hour

Purkinje neurons

pyramidal neurons

multipolar neurons

bipolar neurons