Froment's Sign is seen in:: (A) Ulnar nerve palsy, (B) Median nerve palsy, (C) Musculocutaneous nerve palsy, (D) Posterior Interosseous nerve palsy
Answer is A. Froment Sign: In case of ulnar nerve palsy adductor pollicis supplied by ulnar nerve is paralysed. S o, patient holds the book between thumb and palm by using flexor pollicis longus (supplied by AIN nerve) . This produces flexion at inter-phalangeal joint, while holding book.