pyramidal neurons

bipolar neurons

multipolar neurons

Purkinje neurons

electrical impulses

proteins

hormonal

telegraph

brains

a nerve

all of the above

spinal cord

muscle cells

glial cells

prison cells

stem cells

muscle

nerve

wire

the brain

1 month

100 years

10 years

1 year

muscle cells

liver cells

skin cells

stem cells

150 meters per second

1 foot per second

1 meter per second

100 miles per hour

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly