stem cells

muscle cells

glial cells

prison cells

150 meters per second

100 miles per hour

1 meter per second

1 foot per second

proteins

electrical impulses

hormonal

telegraph

1 year

1 month

100 years

10 years

pyramidal neurons

multipolar neurons

Purkinje neurons

bipolar neurons

a nerve

brains

all of the above

spinal cord

muscle

nerve

wire

the brain

muscle cells

liver cells

stem cells

skin cells

they regenerate very quickly

they do not have a nucleus

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body