Larynx and airway: quadrangular membrane: practice question

A ENT question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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ENT · Larynx and airway: quadrangular membrane

Sample item

Which laryngeal ligament extends from the epiglottis to the arytenoid and forms the aryepiglottic fold above and the vestibular ligament at its free lower edge?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

C. Quadrangular membrane

The quadrangular membrane lies in the supraglottic larynx, with its upper free margin forming the aryepiglottic fold and its lower free margin forming the vestibular ligament inside the false cord. The conus elasticus is the lower elastic membrane forming the vocal ligament. These membranes limit tumour spread.

Option by option

  • A. Thyrohyoid membrane

    The thyrohyoid membrane joins hyoid and thyroid cartilage.

  • B. Cricothyroid ligament

    The cricothyroid ligament is the median part of the conus elasticus.

  • C. Quadrangular membrane (correct)

    Correct. It underlies the aryepiglottic and vestibular folds.

  • D. Conus elasticus

    The conus elasticus lies below the vocal cords.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

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Questions about this ENT question

What is the answer to this ENT question?

The best answer is C, Quadrangular membrane. The quadrangular membrane lies in the supraglottic larynx, with its upper free margin forming the aryepiglottic fold and its lower free margin forming the vestibular ligament inside the false cord.

Why is "Thyrohyoid membrane" not the answer?

The thyrohyoid membrane joins hyoid and thyroid cartilage.

Why is "Cricothyroid ligament" not the answer?

The cricothyroid ligament is the median part of the conus elasticus.

Why is "Conus elasticus" not the answer?

The conus elasticus lies below the vocal cords.

What concept does this question test?

It tests Larynx and airway: quadrangular membrane in ENT. The conus elasticus is the lower elastic membrane forming the vocal ligament. These membranes limit tumour spread.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Larynx and airway: quadrangular membrane?

Learn tuning fork results and audiogram patterns by sketching them. Then use the flashcards and the other ENT questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.