This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Protrusion of the tongue is not possible in damage of: 
Select and explain. 
A. Styloglossus, B. Hyoglossus, C. Palatoglossus, D. Genioglossus
D: Genioglossus
Answer: D: Genioglossus 
Explanation: Posterior part of genioglossus pulls tongue anteriorly for protrusion.
It is also called safety muscle of tongue as it prevents backward fall of tongue into the oral cavity, especially if the patient is unconscious.