1 month

100 years

1 year

10 years

stem cells

prison cells

glial cells

muscle cells

they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

Purkinje neurons

bipolar neurons

pyramidal neurons

multipolar neurons

the brain

nerve

muscle

wire

hormonal

proteins

telegraph

electrical impulses

brains

spinal cord

a nerve

all of the above

liver cells

muscle cells

skin cells

stem cells

150 meters per second

1 meter per second

100 miles per hour

1 foot per second