<prompt> Structures lying deep to posterior belly of digastric are all except?Retromandibular veinHypoglossal nerveHyoglossus muscleOccipital aery  <response>: Relations of Digastric triangle Superficial Deep medial Platysma Mastoid process sternocleidomastoid Stykohyoid muscle Retromandibular vein parotid gland Submandibular salivary gland Angle of mandible with medial pterygoid For anterior belly Mylohyoid For posterior belly Transverse process of atlas with superior oblique rectus capitis lateralis muscle. Hyoglossus muscle Hypoglossal spinal accessory nerves Occipital, internal external carotid, facial lingual aeries Internal jugular vein 