bipolar neurons

multipolar neurons

pyramidal neurons

Purkinje neurons

a nerve

spinal cord

all of the above

brains

100 miles per hour

150 meters per second

1 meter per second

1 foot per second

hormonal

electrical impulses

telegraph

proteins

liver cells

skin cells

muscle cells

stem cells

nerve

wire

muscle

the brain

glial cells

prison cells

muscle cells

stem cells

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

they regenerate very quickly

1 month

100 years

10 years

1 year