Dental According to Labyrinthine reflex, when head is tilted backwards it will cause the: A Back to stiffen or arch backwards B Legs straighten and push together C Arms to bend at elbows and hands to become fisted. D All of the above. 💡 Explanation According to Labyrinthine reflex, when head is tilted backwards it will cause the: ✓ Correct Answer: D. All of the above.