muscle cells

glial cells

stem cells

prison cells

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

150 meters per second

1 foot per second

100 miles per hour

1 meter per second

a nerve

spinal cord

all of the above

brains

multipolar neurons

bipolar neurons

Purkinje neurons

pyramidal neurons

telegraph

electrical impulses

hormonal

proteins

wire

nerve

muscle

the brain

muscle cells

skin cells

liver cells

stem cells

1 month

100 years

10 years

1 year