biology

Obturator membrane

Obturator membrane 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 Obturator membrane rather than just read about it. In short: The obturator membrane is a thin fibrous sheet, which almost completely closes the obturator foramen. Its fibers are arranged in interlacing bundles mainly transverse in direction; the uppermost bundle is attached to the obturator tubercles and completes the obturator canal for the passage of the obturator vessels and nerve.

Key takeaways

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

Reference excerpt

The obturator membrane is a thin fibrous sheet, which almost completely closes the obturator foramen. Its fibers are arranged in interlacing bundles mainly transverse in direction; the uppermost bundle is attached to the obturator tubercles and completes the obturator canal for the passage of the obturator vessels and nerve. The membrane is attached to the sharp margin of the obturator foramen except at its lower lateral angle, where it is fixed to the pelvic surface of the inferior ramus of the ischium, i. e., within the margin. Both obturator muscles are connected with this membrane.

Additional images

References This article incorporates text in the public domain from page 476 of the 20th edition of Gray's Anatomy (1918)

External links Anatomy figure: 17:03-11 at Human Anatomy Online, SUNY Downstate Medical Center lljoints at The Anatomy Lesson by Wesley Norman (Georgetown University) (hipjointposterior)

Illustrations

Worked examples

Example 1 — a first encounter with Obturator membrane

Start with the simplest possible case. Write down what Obturator membrane 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 Obturator membrane 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 Obturator membrane 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 Obturator membrane

In research: Obturator membrane 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 Obturator membrane 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: Obturator membrane is common in secondary-school and first-year university syllabi. It links to neighbouring topics Anatomy stubs, Joints, so understanding it makes those chapters shorter.
In everyday life: Look for Obturator membrane 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 Obturator membrane in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Obturator membrane 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 Obturator membrane out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Obturator membrane in simple terms?

Why does Obturator membrane 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 Obturator membrane?

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 Obturator membrane.