This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Special Senses, Subject name: Physiology
The stereocilia of hair cells are embedded in which membrane? 
Select and explain. 
A. Basilar, B. Reissner's, C. Tectorial, D. Tympanic
C: Tectorial
Answer: C: Tectorial 
Explanation: The scala media is bordered by the basilar membrane and Reissner's membrane and contains a tectorial membrane. The apical border of hair cells has stereocilia that are embedded in the tectorial membrane.