DHABHAI

internal features of midbrain tympanic plexus chorda tympani tensor tympani stapedius malleus stapes incus ossicles tympanic cavity middle ear external acoustic meatus external ear red nucleus superior colliculi inferior colliculus cerebral peduncle substantia nigra crus cerebri external features of midbrain posterior cerebral artery middle cerebral artery anterior cerebral artery basilar artery vertebral artery internal carotid artery circle of willis