Answer to The Eagle Has Landed
Correct answer is E. The stem of the question clearly states that the injury occurred within the vestibule. The vestibule is found between the inside lining of the cheeks and the gums and teeth. Hence, the area of the vestibule is only indicated by #5. Based on the appearance of the injured side being described as dry, he likely inserted the splinter accidentally into the opening of the parotid duct. This is an injury akin to developing a parotid stone, except that the injury was a rapid onset. 1 = the inferior alveolar nerve. This nerve is actually in the mandible. 2 = Oral cavity proper, given that the line is indicating the oral cavity side of the molar. 3 = tonsillar bed. 4 = styloglossus muscle.
Postscript: Turns out that the African walnut tree, unfortunately not a species that grows in Europe or the Americas, does kill bad breath. Apparently a chemical in the nut kills off the bacterial responsible for the bad breath.
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Answer to this question is based on material presented in lectures 8 of the Head and Neck Lecture Series.
= Inferior alveolar n.
= Oral cavity proper
= Tonsillar bed
= Styloglossus muscle
= Vestibule