Rebuilding the Lip
Anatomical domain · Lesson 8 of 20 · Human Body Systems (HBS)
Today's goal: Explain that cleft lip repair reconstructs the interrupted orbicularis oris ring, and compare how three named techniques solve that same problem.
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.
What I am rebuilding: the interrupted orbicularis oris ring, whose fibers insert abnormally on the cleft margins, so closing skin alone would leave a muscle that still cannot seal the lip. Technique: I will use a Fisher anatomical subunit repair because its incisions follow the lip's natural borders and hide the scar in a real edge. Trade-off: this demands precise marking and is less forgiving of measurement error than a flexible rotation-advancement, which I accept for the scar quality. Plan: Fisher anatomical subunit cheiloplasty for Mateo, with the orbicularis released and rebuilt as a continuous ring across the cleft.
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: When you fix a lip, what are you actually rebuilding, and why is more than one technique still in use?
- 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: Present your operative plan for Mateo's complete left lip in four sentences: (1) state what structure you are actually rebuilding and why skin closure alone is not enough, citing a source, (2) name one technique you will use and one concrete reason, (3) name one trade-off you accept, and (4) end with a clear plan. Defend the logic, not the operative steps.
- 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 "Present your operative plan for Mateo's complete unilateral left cleft lip in four sentences: (1) state what structure you are actually rebuilding and why skin closure alone is not enough, citing a source, (2) name one technique you will use and one concrete reason, (3) name one trade-off you accept, and (4) end with a clear plan. Defend the logic, not the operative steps.".
- 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.