science

Subcostalis muscle

Subcostalis muscle 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 Subcostalis muscle rather than just read about it. In short: The subcostales (singular: subcostalis) (Infracostales) consist of muscular and aponeurotic fasciculi, which are usually well-developed only in the lower part of the thorax; each originates from the inner surface of one rib, and is inserted into the inner surface of the second or third rib below, near its angle. Their fibers run in the same direction as those of the intercostales interni.

Key takeaways

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

Reference excerpt

The subcostales (singular: subcostalis) (Infracostales) consist of muscular and aponeurotic fasciculi, which are usually well-developed only in the lower part of the thorax; each originates from the inner surface of one rib, and is inserted into the inner surface of the second or third rib below, near its angle. Their fibers run in the same direction as those of the intercostales interni. Depresses the ribs to assist in expiration.

References This article incorporates text in the public domain from page 403 of the 20th edition of Gray's Anatomy (1918)

Worked examples

Example 1 — a first encounter with Subcostalis muscle

Start with the simplest possible case. Write down what Subcostalis muscle 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 Subcostalis muscle 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 Subcostalis muscle 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 Subcostalis muscle

In research: Subcostalis muscle 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 Subcostalis muscle 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: Subcostalis muscle is common in secondary-school and first-year university syllabi. It links to neighbouring topics Muscle stubs, Muscles of the torso, so understanding it makes those chapters shorter.
In everyday life: Look for Subcostalis muscle 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 “Subcostalis muscle” →

Affiliate

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

How to study Subcostalis muscle in 20 minutes

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

Frequently asked questions

What is Subcostalis muscle in simple terms?

Why does Subcostalis muscle 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 Subcostalis muscle?

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 Subcostalis muscle.