brains

spinal cord

a nerve

all of the above

liver cells

skin cells

stem cells

muscle cells

150 meters per second

1 meter per second

100 miles per hour

1 foot per second

pyramidal neurons

bipolar neurons

multipolar neurons

Purkinje neurons

they do not have a nucleus

they help carry oxygen to different parts of your body

they regenerate very quickly

they are very long compared to other cells in the body

the brain

nerve

muscle

wire

stem cells

prison cells

muscle cells

glial cells

1 month

100 years

1 year

10 years

telegraph

electrical impulses

proteins

hormonal