I know orbitals are mathematical probability functions dictating the "possible" location of the electron within a spherical like area of space around the atom. But I'm trying to visualize it.

Does each lobe represent an individual orbital as shown in this picture(Sorry notepad)->

http://i987.photobucket.com/albums/a.../Orbitals2.png

or

Is it the whole object that is considered an orbital -> http://i987.photobucket.com/albums/a.../Orbitals3.png

Thank you