Answer :
Final answer:
The Benediction sign, often referred to as 'Pope's blessing,' is the deformity caused by median nerve laceration, resulting in an inability to flex the index and middle fingers.
Explanation:
The Benediction sign, colloquially known as "Pope's blessing," arises from a median nerve laceration, resulting in a unique hand deformity. This condition manifests as an inability to flex the index and middle fingers during attempted fist formation, resembling a blessing gesture. The median nerve governs the muscles controlling the thumb and first two fingers; hence, injury disrupts their function, producing the distinctive hand posture. Medically significant, this deformity highlights the intricate role of the median nerve in hand movement and underscores the impact of its impairment on fine motor skills. The term "Benediction sign" aptly captures the visual resemblance to a blessing, offering a diagnostic insight into median nerve-related issues.
