ArticleslgStudy

science

Operculum (brain)

Operculum (brain) is a science 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 Operculum (brain) rather than just read about it. In short: In human brain anatomy, an operculum (Latin, meaning "little lid") (pl.: opercula), may refer to the frontal, temporal, or parietal operculum, which together cover the insula as the opercula of insula. It can also refer to the occipital operculum, part of the occipital lobe.

Operculum (brain) — main illustration
Operculum (brain) — illustration

Key takeaways

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

Reference excerpt

In human brain anatomy, an operculum (Latin, meaning "little lid") (pl.: opercula), may refer to the frontal, temporal, or parietal operculum, which together cover the insula as the opercula of insula. It can also refer to the occipital operculum, part of the occipital lobe. The insular lobe is a portion of the cerebral cortex that has invaginated to lie deep within the lateral sulcus. It sits like an island (the meaning of insular) almost surrounded by the groove of the circular sulcus and covered over and obscured by the insular opercula. A part of the parietal lobe, the frontoparietal operculum, covers the upper part of the insular lobe from the front to the back. The opercula lie on the precentral and postcentral gyri (on either side of the central sulcus). The part of the parietal operculum that forms the ceiling of the lateral sulcus functions as the secondary somatosensory cortex.

Development Normally, the insular opercula begin to develop between the 20th and the 22nd weeks of pregnancy. At weeks 14 to 16 of fetal development, the insula begins to invaginate from the surface of the immature cerebrum of the brain, until at full term, the opercula completely cover the insula. This process is called opercularization.

Case reports

Albert Einstein's brain Opinions differ on whether Albert Einstein's brain possessed parietal opercula. Falk, et al. claim that the brain actually did have parietal opercula, while Witelson et al. claim that it did not. Einstein's lower parietal lobe (which is involved in mathematical thought, visuospatial cognition and imagery of movement) was 15% larger than average.

See also Circular sulcus of insula Sulcus lateralis

Notes

References Dorland (2012). Dorlands Illustrated Medical Dictionary (32nd ed.). Elsevier Health Sciences. ISBN 978-1-4160-6257-8. Falk D, Lepore FE, Noe A (April 2013). "The cerebral cortex of Albert Einstein: a description and preliminary analysis of unpublished photographs". Brain. 136 (Pt 4): 1304–27. doi:10.1093/brain/aws295. PMC 3613708. PMID 23161163.

Illustrations

Operculum (brain) illustration
Operculum (brain) illustration
Operculum (brain): red:Brodmann area 41, green:Brodmann area 42, note 1: BA41 is bounded medially by Brodmann area 52 and laterally by BA42, note 2: pSTG is posterior part of the superior temporal gyrus
red:Brodmann area 41, green:Brodmann area 42, note 1: BA41 is bounded medially by Brodmann area 52 and laterally by BA42, note 2: pSTG is posterior part of the superior temporal gyrus

Worked examples

Example 1 — a first encounter with Operculum (brain)

Start with the simplest possible case. Write down what Operculum (brain) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Operculum (brain) 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 Operculum (brain) 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 Operculum (brain)

In research
Operculum (brain) appears in science 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 Operculum (brain) 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
Operculum (brain) is common in secondary-school and first-year university syllabi. It links to neighbouring topics Albert Einstein, Cerebrum, so understanding it makes those chapters shorter.
In everyday life
Look for Operculum (brain) 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.
Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Operculum (brain)” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Operculum (brain) in 20 minutes

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

Frequently asked questions

What is Operculum (brain) in simple terms?

In human brain anatomy, an operculum (Latin, meaning "little lid") (pl.: opercula), may refer to the frontal, temporal, or parietal operculum, which together cover the insula as the opercula of insula. It can also refer to the occipital operculum, part of the occipital lobe.

Why does Operculum (brain) matter?

Because it connects several science 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 Operculum (brain)?

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 Operculum (brain).

Tags

  • Albert Einstein
  • Cerebrum

Keep exploring