The bulge is often part of your intestine, but it may also be tissue or fat. There are three common types of ventral hernias. An incisional hernia occurs where you have had a surgical cut. An epigastric hernia occurs above your belly button. A spigelian hernia occurs on the side of your abdomen.
Acids are compounds that dissociate (break) into hydrogen (H+) ions and another compound when placed in an aqueous solution. Remember that acetic acid example? Bases are compounds that break up into hydroxide (OH-) ions and another compound when placed in an aqueous solution.
In the bulk aqueous phase, surfactants form aggregates, such as micelles, where the hydrophobic tails form the core of the aggregate and the hydrophilic heads are in contact with the surrounding liquid. Other types of aggregates can also be formed, such as spherical or cylindrical micelles or lipid bilayers.