The Normal Lip and Palate, Part by Part
Anatomical domain · Lesson 1 of 20 · Human Body Systems (HBS)
Today's goal: Label the parts of the normal lip, palate, and nasal floor, and explain that the roof of the mouth is a wall that separates the mouth (oral cavity) from the nose (nasal cavity).
What a finished product looks like
This is a model of the work you should turn in. Use it to check your own: match the structure and the level of detail, do not copy it. Your wording should be your own.
Labels (front to back):
- Upper lip: philtrum (central groove), philtral columns, Cupid's bow, vermilion border (lip-to-skin line).
- Gum ridge: alveolus (will hold teeth).
- Roof of the mouth: hard palate (bone, front two-thirds), incisive foramen (boundary landmark), soft palate / velum (movable back third), uvula.
One-sentence job: The roof of the mouth is a continuous wall that keeps the oral cavity (mouth) separate from the nasal cavity (nose), which is what lets a newborn build suction and keep milk out of the nose.
How this was built, step by step
The finished product above did not appear all at once. Here is the path from the question to the turned-in work, so you can follow the same steps.
- 1Start from today's question: What are the parts of a normal lip and , and what is the roof of the mouth actually doing?
- 2Work the Model and the Explore questions to reason it out before writing anything.
- 3Pull the specific evidence the product needs from the reading and any database you used.
- 4Write it up in the required format: On a blank diagram of a normal newborn upper lip and open mouth, label six structures: , , , , , and . Then write one sentence explaining, in your own words, what job the roof of the mouth does.
- 5Check it against the rubric, then submit.
| Criterion | Proficient | Developing | Beginning |
|---|---|---|---|
| Complete | Every required part of the artifact is present and filled in. | Most parts are present, but one is missing or left blank. | Several parts are missing. |
| Accurate | The science and data are correct and match the evidence. | Mostly correct, with a small factual slip. | Key science or data is wrong. |
| Scientific reasoning (CER) | States a claim, backs it with specific evidence, and explains the reasoning. | Has a claim and evidence, but the reasoning is thin or missing. | Gives an answer with no evidence or reasoning. |
| Professional communication | Clear, organized, and labeled the way a clinician or scientist would write it. | Readable but disorganized or missing labels. | Hard to follow. |
| Submitted | Turned in the right way (Schoology for routine work) and confirmed. | Turned in, but in the wrong place or unconfirmed. | Not turned in. |
- CompleteProficient: Nothing is left blank: the model fills every part of "On a blank diagram of a normal newborn upper lip and open mouth, label six structures: philtrum, vermilion border, alveolus, hard palate, soft palate (velum), and incisive foramen. Then write one sentence explaining, in your own words, what job the roof of the mouth does.".
- AccurateProficient: Every number and claim matches the case evidence.
- Scientific reasoning (CER)Proficient: It names a claim, cites the specific evidence, and explains the reasoning, not just the answer.
- Professional communicationProficient: It is organized and labeled like a real chart note.
- SubmittedProficient: It would be turned in on Schoology and confirmed.
WebXam problem for today's skill
One exam-style question that uses exactly what you practiced today. Try it before you reveal the answer, then read why each choice is right or wrong.
Tap an answer to see the full explanation. Nothing is recorded or graded.