Astanga Hrudaya
रोमावर्तोऽधिपो नाम मर्म सद्यो हरत्यसून्। विषमं स्पन्दनं यत्र पीडिते रुक् च मर्म तत्॥३७॥
on the top and at the spiral of hairs is located the marma named adhipati. Injury to this causes quick death. Marma is that place which has unusual throbbing and pain on touch the meeting place of muscle,
english translation