by Anne Marie Helmenstine, Ph.D. Updated June 13, 2014. Definition: A molecular orbital is an orbital or wavefunction of a molecule's electron. Electrons around a molecule can be associated with more than one atom and are often expressed as a combination of atomic orbitals.
Hereditary angioedema is a disorder characterized by recurrent episodes of severe swelling (angioedema). The most common areas of the body to develop swelling are the limbs, face, intestinal tract, and airway. Minor trauma or stress may trigger an attack, but swelling often occurs without a known trigger.
Skin manifestations in this case vary from single, minor point formations to diffuse, diffuse changes in the epidermis. Causes and risk factors. The most common cause of angiokeratitis is hereditary mutations at the gene level, leading to the appearance of defective chromosomes. As a rule, angiokeratoma is inherited recessively, in adhesion to the X chromosome.