Incisura

INCISURA (Latin), notch, a term used in normal anatomy to denote notches on various bones of the skeleton, on certain internal organs, on the auricle, and in the brain. This term is usually accompanied by a second word or a second term indicating the belonging of the notch to a particular bone (for example, I. scapulae - notch of the scapula), to a particular organ or anatomical formation (I. apicis cordis - notch of the apex of the heart); further, it is accompanied by a word indicating the shape of the notch (I. semilunaris - semilunar notch), its position on the bone (I. intercondyloidea - intercondylar notch) and in the organ (I. interarytaenoidea - interarytenoid), on the bone adjacent to the notch of this bone (I. ulnaris radii - ulnar notch of the radius), on the organ or anatomical formation adjacent to the notch of this organ (I. cardiaca pulmonis - cardiac notch of the lung). In cases where there are two similarly named notches on a single bone or organ, but of different sizes or different positions, the following are added to the main name of the notch: anterior, posterior, superior, inferior, major, minor (for example: incisurae vertebrales superior et inferior - superior and inferior vertebral notches).