mandibular fossa a depression in the inferior surface of the pars squamosa of the temporal bone at the base of the zygomatic process, in which the condyle of the mandible rests; called also glenoid fossa.
Khadijah or KhadÄ«ja bint Khuwaylid (Arabic: Ø®Ø¯ÙØ¬Ø© Ø¨ÙØª Ø®ÙÙÙØ¯ â) or KhadÄ«ja al-Kubra (Khadija the great) (c. 555 or 567 â 620 CE) was the first wife of the Islamic prophet Muhammad.She is commonly regarded by Muslims as the  mother of the Believers i.e.Muslims , and was the first person to convert to Islam.hadija did not travel with her trade caravans; she employed others to trade on her behalf for a commission. In 595 Khadija needed an agent for a transaction in Syria. Abu Talib ibn 'Abd al-Muttalib recommended her distant cousin Muhammad ibn Abdullah.
His sister, Umm Habib bint Asad, was the matrilineal great-grandmother of Muhammad. Khadija's mother, Fatima bint Za'idah, who died around 575, was a member of the Amir ibn Luayy clan of the Quraysh and a third cousin of Muhammad's mother.uhammad and Khadija were married monogamously for twenty-five years. This monogamous marriage contrasts with Muhammad's later practice of polygyny after Khadijah's death. Muhammad's youngest wife, Aisha, was to be jealous of the affection and loyalty that Muhammad maintained for Khadija even after her death.