Eardrum the membrane as far as its center, drawing it toward the tympanic cavity. The lateral surface of the membrane is thus concave. The most depressed aspect of this concavity is termed the umbo (). Sensory innervation of the external surface of the tympanic membrane is supplied mainly by the auriculotemporal nerve, a branch of the mandibular nerve (cranial nerve V), with contributions from the auricular branch of the vagus nerve (cranial nerve X), the facial nerve (cranial nerve VII), and possibly the glossopharyngeal nerve (cranial nerve IX). The inner surface of the tympanic membrane is innervated by the glossopharyngeal nerve.
Economy for the Common Good Economy for the Common Good Economy for the Common Good is a social movement advocating for an alternative economic model. It calls for working towards the common good and cooperation as value above profit-orientation and competition which leads to greed and uncontrolled growth. Christian Felber coined the term in his book "Die Gemeinwohl-Ökonomie - Das Wirtschaftsmodell der Zukunft", published in 2010. According to Felber, it makes much more sense for companies to create a so-called "common good balance sheet" than a financial balance sheet. The common good balance sheet shows the extent to which a company abides by values like