Clue 1: Orient yourself
Why not repair at the first possible minute?
Use the labels and the picture's left-to-right, near-to-far, or before-and-after order. Name only what you can point to.
The question
Why are the lip and palate repaired at different times?
Why it matters: Structure affects feeding, breathing, hearing, speech, teeth, and surgical planning. Care teams need to connect the exact structure to the function a child is using every day. Today you practice the professional reasoning behind that work: Cleft surgery timing balances present safety, early function, future growth, and family readiness rather than following one magic date.
On your WebXam
Justifying cleft surgery timing as a balance of competing forces
For life
One result can have many causes; the outcome alone never tells you which.
Principle: Many roads, one ending
Five principles we return to
Having it is not using it
Same instructions, different switches
Same look, different cause
Change one thing and watch
Boss or doorman?
Decides the result or only allows it
Held down, not gone
Remove the brake and it returns
Many roads, one ending
One result can begin many ways
Try the everyday version first
Repair a busy bridge during the safest useful window
Bridge work is timed around traffic, weather, materials, and future use. The best window balances immediate safety with the need to protect later function.
Do not jump to the biology yet. Treat the picture as a small system. Track its parts, follow one change at a time, and keep more than one explanation open until the picture supplies a way to separate them.
Clue 2: Trace one change
What is lost by waiting too long?
Follow one object, stage, or path. Point to the first place where the situation changes instead of jumping to the ending.
Clue 3: Keep the cause open
Which conditions make the window individual?
List more than one explanation that still fits. Name the extra observation that would help you separate those possibilities.
Now inspect the illustration
Work from the visible evidence. A useful answer names the part of the picture that supports it and leaves unknown causes open.
- 1Why not repair at the first possible minute?
- 2What is lost by waiting too long?
- 3Which conditions make the window individual?
Tier 1 check
Finish with the everyday model
Use the everyday picture to answer today's question in plain words: Why are the lip and palate repaired at different times?
You can complete today's required check without opening the technical details below.
Ready for the real names? Optional tier 2
Technical rules and limits
Rule 1: Define the function that needs protection.
Rule 2: Check medical and family readiness.
Rule 3: Use a window and team protocol, not a universal birthday.
Where the analogy stops: Surgical timing depends on individual clinical factors and cannot be reduced to a maintenance calendar.
Carry the previous idea forward
Palate repair must close the oral-nasal opening and rebuild the levator sling while protecting blood supply and growth.
Today's technical takeaway
Cleft surgery timing balances present safety, early function, future growth, and family readiness rather than following one magic date.
Now map the same rules onto biology
Build Mateo's staged repair calendar
Traffic need
Feeding, speech, and family function
Structural readiness
Infant health and anesthesia readiness
Future expansion
Facial growth and later procedures
Educational illustration, not a clinical photograph, scan, or surgical plan. Use the labeled evidence cards and claim ceiling.
Mateo's case file: evidence supplied in this lesson
ANA10-E1
ACPA states that primary lip repair is often initiated within the first six months for healthy infants.
Why it matters: Three months can be a common center target but is not a universal rule.
ANA10-E2
ACPA states that primary palate repair often occurs at 9 to 14 months and ideally by 18 months.
Why it matters: Speech development and readiness shape the window.
ANA10-E3
Mateo is medically stable in the composite file, but care is shared with the family and center team.
Why it matters: A final date depends on individual assessment and protocol.
Make the clinical decision
You are the cleft-team coordinator.
A handout says every infant must have lip repair on the exact 90th day and palate repair on the exact first birthday.
AReplace exact dates with evidence-based windows and readiness gates.
BKeep the exact birthdays as universal rules.
CAvoid discussing timing with the family.
Choose the calendar language and cite both ACPA timing windows.
Evidence required
ANA10-E1 + ANA10-E2 Claim ceiling
You may propose an educational sequence for the stable composite case. You may not schedule real surgery or override the treating team.Go deeper Optional tier 3
Everything required for today is above. Open these only if you want the explainer, source trail, or download files.
The everyday model and Tier 1 check are the complete required path for this lesson.
Use these checks to keep your place. They are not turned in through the portal.
Check off as you finish
- Worked through the everyday picture and answered its three questions.
- Completed the Tier 1 check in plain words.
Turn in: Anatomical lesson 10: When to Repair, and Why the Calendar Matters
Go to Schoology to turn this in.
Submit one PDF. Put your first and last name in the document header. Name the file: FirstName LastName - Assignment Title - YYYY-MM-DD.pdf.
Open Schoology PDF upload helpIf you cannot get in, see Mr. Mendoza. Do not skip the work.
Optional legacy technical materials Open only if you want the original notes, vocabulary, artifact, and CER work
Before this page, you should know
- Job 1 is closing the in layers; Job 2 (the harder one) is rebuilding the into a working sling.
- In a the levator ran the wrong way and inserted onto the back of the ; imaging shows it stays abnormal even after repair, worst in children who still leak air.
If not, review
Today's new idea is only
surgery timing is a deliberate balance of , speech, and growth, not a single fixed date.
Goal: Explain why lip repair happens at about 3 months and repair at about 9 to 12 months, and justify the timing as a balance between , growth, and speech development.
Know by the end
- Lip repair is usually done at about 3 to 6 months; repair is generally favored as a one-stage repair at about 9 to 14 months, before first words.
- Three forces pull on the dates: (wait for the infant to grow for safer anesthesia), speech (the valve must work before first words), and growth ( surgery disturbs upper-jaw growth, pulling toward waiting).
- Earlier repair within the usual window supports better speech; a large study found older age at worsened outcomes.
- Timing is not only biology: in some settings minority and non-English-speaking children reached surgery measurably later, a non-anatomical cause of delay.
1
The two target ages
Model start: Lip repair is usually done at about 3 to 6 months once the infant has grown enough for safer anesthesia; repair is favored at about 9 to 14 months, before first words.
- Lip repair is usually done at about ____ months (the older is one readiness guide).
- Delay in repair is associated with significant ____ deficits.
2
Three forces
- The dates balance , speech, and ____ ( surgery disturbs upper-jaw growth).
- The window sits between the speech pull (earlier) and the growth pull (____).
3
Beyond biology
- A large study found that older age at ____ outcomes, and in some settings minority and non-English-speaking children reached surgery measurably ____.
Everything you need for today is on this page. These links are optional.
What to read
Read the short plain-language explanation written for this lesson. Plain-language explainer for this lesson
Why this source matters
This explanation gives you the background for today's idea without making you decode a research paper: surgery timing is a deliberate balance of , speech, and growth, not a single fixed date.
Words to unlock first
surgical timingrule of tenspalatoplasty timingspeech-language windowgrowth disturbance
Reading moves
- Skim the title and abstract first to get the gist.
- Circle the one sentence that states the main claim.
- Box the evidence the authors give for that claim.
- Mark one sentence that confuses you, and move on.
Stop point
Stop after the final 'Use it now' section. The research citations are available separately for advanced readers.
Your output
Write one claim-evidence sentence: state the main idea, then name the example or evidence that supports it.
Where this fits
Tested on (Ohio WebXam)
Genetics of Disease · 072130
PLTW lesson
MI · Anatomical domain · Structure and function; developmental timing and readiness
WebXam domain
Molecular and Genetic Technology
Evidence to produce
Set Mateo's surgical calendar for the family in four sentences: (1) state the target age for his lip and palate repairs, (2) justify the palate date using both the speech force and the growth force with a source, (3) name one non-anatomical thing that could push his date later and one way the team will guard against it with the disparity source, and (4) end with two committed dates, not a hedge.
Lab / skill
Human Body Systems (HBS) · Biomedical Innovations (BI)
Everything required for today's decision is already in the case file and plain-language explainer. The links below are original papers and database records for teachers and advanced readers, not assigned student reading.
- American Cleft Palate Craniofacial Association. 2024 Parameters of Care.
- Lindeborg et al. 2020, Optimizing speech outcomes for cleft palate (Curr Opin Otolaryngol HNS)
- Huang et al. 2023, Sommerlad-Furlow modified palatoplasty, older age worse (J Craniomaxillofac Surg)
- Zaluzec et al. 2019, Delay in Cleft Repair: Health Disparities (J Craniofac Surg)
- Claim: surgery timing is a compromise, not a single right date.
- Evidence: Cite the speech-delay finding and the older-age finding with sources.
- Reasoning: Explain why repairing the lip early and the near the first birthday serves Mateo better than doing both at once.
How this is graded (rubric)
For: Set Mateo's surgical calendar for the family in four sentences: (1) state the target age for his lip and palate repairs, (2) justify the palate date using both the speech force and the growth force with a source, (3) name one non-anatomical thing that could push his date later and one way the team will guard against it with the disparity source, and (4) end with two committed dates, not a hedge.
| 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 through the route named under Submit here and confirmed. | Turned in, but in the wrong place or unconfirmed. | Not turned in. |
How the model answer scores against this rubric
- CompleteProficient: Nothing is left blank: the model fills every part of "Set Mateo's surgical calendar for the family in four sentences: (1) state the target age for his lip and palate repairs, (2) justify the palate date using both the speech force and the growth force with a source, (3) name one non-anatomical thing that could push his date later and one way the team will guard against it with the disparity source, and (4) end with two committed dates, not a hedge.".
- 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 attached to your class form or handed in, and confirmed.
What's next: We set Mateo's calendar: his lip repaired around three months, his before his first words land. We argued that the timing itself helps protect his speech. But that rests on a claim we have not proven. Why does closing the roof of the mouth matter so much for talking in the first place? We chase that next time.