This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Forearm wrist and hand injuries, Subject name: Orthopaedics
Midpalmar space ends distally in 
Select and explain. 
A. Along the digital sheaths, B. Into the flexor tendon sheaths, C. Into the web space, D. Distal palmar crease
D: Distal palmar crease
Answer: D: Distal palmar crease 
Explanation: Midpalmar space * Anterior -- Palmar aponeurosis, superficial palmar arch, flexor tendons of medial 3 digits covered in ulnar bursa and medial 3 lumbricals * Posterior - Fascia covering 3 & 4 interossei and metacarpal bones * Medial -- Medial Palmar septum * Lateral - Midpalmar septum * Proximal -- distal margin of flexor retinaculum * Distal - medial 2 web spaces thru lumbrical canals Ref: Maheshwari and Mhaskar 9th ed pg 208.