This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper Extremity, Subject name: Anatomy
Which of the following is not a component of carpal tunnel? 
Select and explain. 
A. Ulnar nerve, B. Median nerve, C. Flexor digitorum superficialis, D. Flexor digitorum profundus
A: Ulnar nerve
Answer: A: Ulnar nerve 
Explanation: Ans. A Ulnar nerveRef: Gray's Basic Anatomy E-book, P 399Carpal Tunnel Anatomy* Posterior border# Carpal bones* Anterior border# Transverse carpal ligament* Boundaries# Proximally--pisiform and tubercle of navicular# Distally--hook of hamate and tubercle of trapezium* Contents# Flexor digitorum superficialis# Flexor digitorum profundus# Flexor pollicis longus# Median nerve