force required to cause occlusion to trachea in hanging ?: (A) 5kg, (B) 15kg, (C) 20kg, (D) 2kg
Answer is B. * The amount of force required to compress neck structures is estimated as--* jugular vein: 2 kg, * carotid aery: 5 kg, * trachea: 9 - 15 kg and * veebral aery: 3o kg. This implies venous flow is decreased before aerial and airway occlusion * For fractures of thyroid cailage lamina: 14.3 kg * and cricoid cailage: 18.8 kg force is required. ref : narayana reddy 9th ed