Hiccups usually stop within a few minutes to a few hours. Hiccups that last longer than 48 hours are called persistent hiccups. Hiccups that last longer than a month are called intractable hiccups. While very rare, intractable hiccups can cause exhaustion, lack of sleep, and weight loss.
Gap junctions. Gap junctions. connections between cells which allow passage of small molecules and electric current. Gap junctions were first described anatomically as regions of close apposition between cells with a narrow (1-2 nm) gap between cell membranes. The variety in the properties of gap junctions is reflected in the number of connexins, the family of proteins which form the junctions. Please contribute to this project, if you have more information about this term feel free to edit this page.
A pân junction. The circuit symbol is shown: the triangle corresponds to the p side. See also: pân diode and Diode Â§ Semiconductor diodes. A pân junction is a boundary or interface between two types of semiconductor material, p-type and n-type, inside a single crystal of semiconductor.he same is true of an n-doped semiconductor, but the junction between them can become depleted of charge carriers, and hence non-conductive, depending on the relative voltages of the two semiconductor regions.