What would be your best response to this question:
A 9 year old girl comes to her pediatrician complaining
of pain on the bump behind her ear and her mom explains she keeps falling down and complains that she is dizzy. An otoscope exam reveals red, swollen ear drum, and her throat and nasal cavity are also inflamed. She is diagnosed with mastoiditis and labyrinthitis. What is the most likely route of infection and what structures are infected are infected in this case. Explain the cause of her dizziness and falling.