'World Book calls it "a cable of nerve cells" that extends from the neck down 2/3 of the backbone'
Spinal cord
CABLE: World Book calls it a cable of nerve cells that extends from the neck down 2/3 of the backbone
World Book calls it "a cable of nerve cells" that extends from the neck down 2/3 of the backbone
World Book calls it "a cable of nerve cells" that extends from the neck down 2/3 of the backbone
CABLE
Spinal cord
CABLE