1 month

100 years

10 years

1 year

bipolar neurons

multipolar neurons

pyramidal neurons

Purkinje neurons

electrical impulses

proteins

hormonal

telegraph

they help carry oxygen to different parts of your body

they regenerate very quickly

they are very long compared to other cells in the body

they do not have a nucleus

a nerve

all of the above

spinal cord

brains

muscle cells

glial cells

stem cells

prison cells

100 miles per hour

150 meters per second

1 foot per second

1 meter per second

the brain

wire

muscle

nerve

skin cells

muscle cells

liver cells

stem cells