tip: apex of tongue, most anterior part blade: lies right in back of the alveolar ridge dorsum (body): main mass of tongue in front of the root root: most dorsal part of tongue.
Bring milk, water and celery root to a simmer in a large saucepan over medium heat. Reduce the heat to maintain a gentle simmer and cook until very tender, about 30 minutes. Reserve 1 cup of the cooking liquid, then drain. Puree the celery root, butter, salt and pepper in a food processor (or blender) until smooth and the consistency of thinned mashed potatoes.
Bring the carrot, celery and water mixture to a boil. Lower the temperature on the stove top until the water is simmering and cover with the pan lid. Step 3. Cook the carrots and celery for 10 to 15 minutes or until they are as soft as you desire.