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: Orthopaedics
Bulbocavernosus reflex is elicited by A/E - 
Select and explain. 
A. Glans pens, B. Clitoris, C. Tug of foley catheter, D. Perianal
D: Perianal
Answer: D: Perianal 
Explanation: The bulbocavernosus reflex is a spinal reflex. It is tested by application of digital pressure on the glans penis or clitoris or gently pulling on the foley catheter to cause reflex anal sphinctor contraction.
Absence of this reflex indicates spinal shock and return of this reflex is the first sign of recovery from spinal shock.