brains

all of the above

a nerve

spinal cord

1 meter per second

100 miles per hour

150 meters per second

1 foot per second

wire

the brain

muscle

nerve

muscle cells

stem cells

glial cells

prison cells

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body

multipolar neurons

bipolar neurons

Purkinje neurons

pyramidal neurons

muscle cells

skin cells

stem cells

liver cells

10 years

1 year

1 month

100 years

telegraph

proteins

electrical impulses

hormonal