brains

a nerve

all of the above

spinal cord

stem cells

glial cells

prison cells

muscle cells

1 month

10 years

100 years

1 year

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

they regenerate very quickly

muscle cells

stem cells

skin cells

liver cells

proteins

telegraph

hormonal

electrical impulses

muscle

the brain

wire

nerve

1 meter per second

100 miles per hour

1 foot per second

150 meters per second

pyramidal neurons

multipolar neurons

bipolar neurons

Purkinje neurons