Development of the digestive system Development of the digestive system The development of the digestive system concerns the epithelium of the digestive system and the parenchyma of its derivatives, which originate from the endoderm. Connective tissue, muscular components, and peritoneal components originate in the mesoderm. Different regions of the gut tube such as the esophagus, stomach, duodenum, etc. are specified by a retinoic acid gradient that causes transcription factors unique to each region to be expressed. Differentiation of the gut and its derivatives depends upon reciprocal interactions between the gut endoderm and its surrounding mesoderm. Hox genes in the mesoderm are induced by a Hedgehog
Acidic (band) Acidic (band) ACIDIC is an indie rock band from Southern California. The band consists of lead vocalist /guitarist Michael Gossard, drummer Matt Whitaker, guitarist/vocalist Josh Bennett, and bassist/vocalist Max Myrick. Gossard, with childhood friend Ted Dubrawski (former bassist of ACIDIC) started performing together in their high school’s rock band (Crespi Carmelite) before Michael formed the band now known as ACIDIC in his freshman year. In 2008, looking to add a drummer to their new group, they conducted a city-wide search which found Matt Whitaker at a rival high school (Loyola). Drummer Whitaker is a cancer survivor, having overcome leukemia when