ডাক্তারদের পোস্টগ্রাজুয়েশন Anatomy ৩য় অধ্যায়: Upper Limb

ব্যাখ্যা: The radial nerve supplies the extensors of the wrist and fingers. Injury in the spiral groove of the humerus (e.g. mid-shaft fracture) paralyses them, so the wrist hangs flexed (wrist drop). 📖 রেফারেন্স: Snell, Clinical Anatomy by Regions · Upper Limb: radial nerve

ব্যাখ্যা: Erb–Duchenne palsy is an upper-trunk (C5, C6) injury, e.g. from excessive head-shoulder separation at birth. The limb hangs in the 'waiter's tip' position. C8–T1 injury is Klumpke's palsy. 📖 রেফারেন্স: Snell, Clinical Anatomy by Regions · Upper Limb: brachial plexus

ব্যাখ্যা: The scaphoid and trapezium form the floor of the snuffbox; the scaphoid is the most commonly fractured carpal bone (fall on outstretched hand). Tenderness in the snuffbox suggests the fracture; avascular necrosis of the proximal fragment is a risk. 📖 রেফারেন্স: Snell, Clinical Anatomy by Regions · Upper Limb: wrist and hand