science

Posterior humeral circumflex artery

Posterior humeral circumflex artery 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 Posterior humeral circumflex artery rather than just read about it. In short: The posterior humeral circumflex artery (posterior circumflex artery or posterior circumflex humeral artery) arises from the third part of the axillary artery at the distal border of the subscapularis. Anatomy Course and relations It passes posteriorward with the axillary nerve through the quadrangular space.

Key takeaways

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

Reference excerpt

Anatomy

Course and relations It passes posteriorward with the axillary nerve through the quadrangular space. It winds laterally around the surgical neck of the humerus.

Distribution It is distributed to the shoulder joint, teres major, teres minor, deltoid, and (long and lateral heads of) triceps brachii.

Anastomoses It forms anastomoses with the anterior humeral circumflex artery, (deltoid branch of) profunda brachii artery, (acromial branches of) suprascapular artery, (acromial branches of) and thoracoacromial artery.

Additional images

See also Anterior humeral circumflex artery

References

This article incorporates text in the public domain from page 589 of the 20th edition of Gray's Anatomy (1918)

External links Posterior humeral circumflex artery at the Duke University Health System's Orthopedics program lesson3axillaryart&vein at The Anatomy Lesson by Wesley Norman (Georgetown University)

Illustrations

Worked examples

Example 1 — a first encounter with Posterior humeral circumflex artery

Start with the simplest possible case. Write down what Posterior humeral circumflex artery 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 Posterior humeral circumflex artery 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 Posterior humeral circumflex artery 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 Posterior humeral circumflex artery

In research: Posterior humeral circumflex artery 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 Posterior humeral circumflex artery 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: Posterior humeral circumflex artery is common in secondary-school and first-year university syllabi. It links to neighbouring topics Arteries of the upper limb, Cardiovascular system stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Posterior humeral circumflex artery 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 “Posterior humeral circumflex artery” →

Affiliate

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

How to study Posterior humeral circumflex artery in 20 minutes

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

Frequently asked questions

What is Posterior humeral circumflex artery in simple terms?

The posterior humeral circumflex artery (posterior circumflex artery or posterior circumflex humeral artery) arises from the third part of the axillary artery at the distal border of the subscapularis. Anatomy Course and relations It passes posteriorward with the axillary nerve through the quadrang…

Why does Posterior humeral circumflex artery 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 Posterior humeral circumflex artery?

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 Posterior humeral circumflex artery.