100 years

10 years

1 year

1 month

bipolar neurons

pyramidal neurons

multipolar neurons

Purkinje neurons

brains

spinal cord

a nerve

all of the above

1 foot per second

150 meters per second

1 meter per second

100 miles per hour

glial cells

prison cells

stem cells

muscle cells

telegraph

electrical impulses

hormonal

proteins

they regenerate very quickly

they help carry oxygen to different parts of your body

they do not have a nucleus

they are very long compared to other cells in the body

the brain

wire

nerve

muscle

muscle cells

liver cells

skin cells

stem cells