they regenerate very quickly

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

spinal cord

all of the above

brains

a nerve

the brain

muscle

wire

nerve

1 foot per second

100 miles per hour

150 meters per second

1 meter per second

liver cells

muscle cells

skin cells

stem cells

10 years

1 month

1 year

100 years

electrical impulses

hormonal

proteins

telegraph

muscle cells

prison cells

glial cells

stem cells

bipolar neurons

pyramidal neurons

multipolar neurons

Purkinje neurons