BRIEFLY OUTLINE THE INNERVATION OF THE LARYNX. INCLUDE IN
BRIEFLY OUTLINE THE INNERVATION OF THE LARYNX. INCLUDE IN
BRIEFLY OUTLINE THE INNERVATION OF THE LARYNX. INCLUDE IN YOUR ANSWER A GENERAL DESCRIPTION OF WHAT EACH NERVE SUPPLIES.
Briefly outline the innervation of the larynx. Include in your answer a generaldescription of what each nerve supplies.
Question 3 – Head & NeckA 60 year old male smoker is diagnosed with an early squamous cell carcinoma of theglottic larynx.1. (ANAT)a) Briefly outline the innervation of the larynx. Include in your answer a generaldescription of what each nerve supplies.b) List the cartilages of the larynx.(3 marks)(2 marks)2. (PATH)a) Define squamous hyperplasia, squamous dysplasia and carcinoma in-situ.b) Briefly describe the concept of field cancerisation and give an example.(3 marks)(2 marks)3. (RCB)The patient described above is treated with an altered fractionation schedule ofradiation therapy alone.a) Define the following terms:i. Accelerated fractionationii. Hyperfractionationb) For this patient, describe and explain the effects of accelerated radiationtherapy schedules (compared to conventionally fractionated radiationtherapy) on acute mucosal toxicity and tumour control probability.c) Discuss the potential effect of a pure accelerated radiation therapy scheduleon late effects.(1 mark)(2 marks)(2 marks)4. (PHY)a) Briefly explain how increasing the source-surface distance (SSD) affectspercentage depth dose for photon beams.b) On the same graph, draw the central axis depth dose curves for 6MV,10MV and 18MV photon beams for a 10cm x 10cm field size at 100cmSSD, measured in water. Show percentage and depth scales withnumerical values.c) What effect would the addition of 1cm of build-up bolus have on thepercentage depth dose in tissue?
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