biology

Otofaciocervical syndrome

Otofaciocervical syndrome is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Otofaciocervical syndrome rather than just read about it. In short: Otofaciocervical syndrome, also known as Fara Chlupackova syndrome, are a small group of rare developmental disorders of genetic origin which are characterized by facial dysmorphisms, long neck, preauricular and/or branchial pits, cervical muscle hypoplasia, hearing loss, and mild intellectual disabilities. Additional findings include vertebral anomalies and short stature.

Key takeaways

Otofaciocervical syndrome belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Otofaciocervical syndrome to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Otofaciocervical syndrome from memory before moving on to harder problems.

Reference excerpt

Otofaciocervical syndrome, also known as Fara Chlupackova syndrome, are a small group of rare developmental disorders of genetic origin which are characterized by facial dysmorphisms, long neck, preauricular and/or branchial pits, cervical muscle hypoplasia, hearing loss, and mild intellectual disabilities. Additional findings include vertebral anomalies and short stature.

Types There are two types of OFC:

Otofaciocervical syndrome type 1 It is characterized by facial dysmorphisms, low-set cup-shaped ears, preauricular sinus or cyst, hearing loss, branchial and skeletal anomalies, low-set clavicle bones, winged scapulae, sloping shoulders and mild intellectual disabilities. It is caused by autosomal dominant mutations in the EYA1 gene in chromosome 8. Only 11 cases have been reported in medical literature.

Otofaciocervical syndrome type 2 It is characterized by the same symptoms in type 1, this disorder is different from type 1 because of its genetic cause and because of its additional features: thymus development alterations with T-cell immunodeficiency and recurrent infections which may turn fatal. It is caused by autosomal recessive mutations in the PAX1 gene in chromosome 20. Only 13 cases have been described in medical literature.

References

Illustrations

Worked examples

Example 1 — a first encounter with Otofaciocervical syndrome

Start with the simplest possible case. Write down what Otofaciocervical syndrome claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Otofaciocervical syndrome before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Otofaciocervical syndrome ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Otofaciocervical syndrome

In research: Otofaciocervical syndrome appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Otofaciocervical syndrome in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Otofaciocervical syndrome is common in secondary-school and first-year university syllabi. It links to neighbouring topics Autosomal dominant disorders, Autosomal recessive disorders, Genetic syndromes, so understanding it makes those chapters shorter.
In everyday life: Look for Otofaciocervical syndrome outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Otofaciocervical syndrome in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Otofaciocervical syndrome means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Otofaciocervical syndrome out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Otofaciocervical syndrome in simple terms?

Why does Otofaciocervical syndrome matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Otofaciocervical syndrome?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Otofaciocervical syndrome.