stem cells

muscle cells

glial cells

prison cells

1 meter per second

100 miles per hour

1 foot per second

150 meters per second

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

spinal cord

a nerve

all of the above

brains

1 year

1 month

10 years

100 years

nerve

wire

the brain

muscle

proteins

telegraph

electrical impulses

hormonal

multipolar neurons

pyramidal neurons

bipolar neurons

Purkinje neurons

stem cells

liver cells

muscle cells

skin cells