TRUE/FALSE regarding blood supply of facial nerve is/are? 1. Ascending Pharyngeal aery 2. Greater palatine aery 3. Middle meningeal aery 4. Labyrinthine branch of ethmoidal aery 5. Stylomastoid branch of occipital aery
High-Yield Explanation
Blood supply of facial nerve: Aerial supply: In Canal: 1. Superficial petrosal (branch of middle meningeal aery) 2. Stylomastoid (branch of posterior auricular or occipital aery) Extracranially: 1. Stylomastoid (branch of posterior auricular or occipital aery) 2. Superficial temporal, transverse facial and tympanic (branch of ascending pharyngeal aery) Venous drainage: 1. Venae comitantes of superficial petrosal and stylomastoid aeries.