bipolar neurons

pyramidal neurons

multipolar neurons

Purkinje neurons

spinal cord

brains

a nerve

all of the above

wire

the brain

nerve

muscle

muscle cells

prison cells

stem cells

glial cells

150 meters per second

1 foot per second

1 meter per second

100 miles per hour

1 year

1 month

100 years

10 years

electrical impulses

proteins

hormonal

telegraph

liver cells

muscle cells

stem cells

skin cells

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