part of part of rectus abdominis muscle anterior abdominal wall muscle musculus rectus abdominis profundus A component of the rectus abdominal muscle that is some taxa (see comment) forms a disctinct and separate muscle. UBERON:3010792 This class was sourced from an external ontology (amphibian_anatomy). Its definitions, naming conventions and relationships may need to be checked for compatibility with uberon In salamanders (Caudata) the m. rectus abdominis profundus is sometimes continuous with the m. rectus cervicis profundus. In extreme cases (family Plethodontidae) represents an undivided muscle that arises from the psoterior border of the ischium that proceds uninterrupted to the tongue pad.