muscle

nerve

wire

the brain

liver cells

muscle cells

skin cells

stem cells

proteins

hormonal

telegraph

electrical impulses

they are very long compared to other cells in the body

they do not have a nucleus

they help carry oxygen to different parts of your body

they regenerate very quickly

brains

spinal cord

all of the above

a nerve

glial cells

muscle cells

stem cells

prison cells

Purkinje neurons

multipolar neurons

bipolar neurons

pyramidal neurons

1 month

1 year

10 years

100 years

1 foot per second

150 meters per second

1 meter per second

100 miles per hour