Atelectasis from the outside (tumor, lymph node, tubercle). Another cause is poor surfactant spreading during inspiration, causing the surface tension to be at its highest which tends to collapse smaller alveoli. Atelectasis may also occur during suction, as along with sputum, air is withdrawn from the lungs. There are several types of atelectasis according to their underlying mechanisms or the distribution of alveolar collapse; resorption, compression, microatelectasis and contraction atelectasis. Relaxation atelectasis (also called passive atelectasis) is when a pleural effusion or a pneumothorax disrupts the contact between the parietal and visceral pleurae. Risk factors associated with increased likelihood of the
Supernumerary body part sometimes represented as having numerous breasts. This was particularly notable in the cult of Artemis (Diana) celebrated in the ancient city of Ephesus, in modern Turkey. In Japanese mythology, the god of the sea and storms, Susanoo, is sometimes depicted as having a third arm. In Hungarian mythology, having six fingers on a hand (polydactyly) is held to be the sign of innate supernatural power (see táltos). In the Bible, Goliath has brothers who have six fingers and six toes. Supernumerary body part Supernumerary body parts are most commonly a congenital disorder involving the growth of an additional part of