brains

a nerve

spinal cord

all of the above

1 month

1 year

100 years

10 years

they do not have a nucleus

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they regenerate very quickly

proteins

hormonal

telegraph

electrical impulses

prison cells

muscle cells

stem cells

glial cells

muscle

nerve

wire

the brain

bipolar neurons

Purkinje neurons

pyramidal neurons

multipolar neurons

150 meters per second

100 miles per hour

1 foot per second

1 meter per second

stem cells

muscle cells

skin cells

liver cells