This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ohopaedics Q Bank, Subject name: Orthopaedics
1st reflex to recover after spinal shock: 
Select and explain. 
A. Bulbocavernosus Reflex, B. Abdominal Reflex, C. Plantar Reflex, D. Ankle Reflex
A: Bulbocavernosus Reflex
Answer: A: Bulbocavernosus Reflex 
Explanation: 1st reflex to recover form spinal shock is bulbocavernosus reflex(S2-S4) It refers to anal sphincter contraction in response to squeezing the glans penis or tugging on the Foley( see figure) During lumbar injury,- If all reflexes are gone, then its spinal shock- If there is symmetrical loss +/- bowel or bladder involvement (which occurs in saddle anaesthesia), it is conus medullaris syndrome- If there is asymmetrical loss, then it is cauda equina syndrome.