biology

Recurrent artery of Heubner

Recurrent artery of Heubner 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 Recurrent artery of Heubner rather than just read about it. In short: The recurrent artery of Heubner, Heubner's artery or distal medial striate artery is a branch of the anterior cerebral artery. It supplies the head of the caudate nucleus and adjacent part of the anterior limb of internal capsule, olfactory regions, and parts of the putamen and septal nuclei.

Key takeaways

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Reference excerpt

The recurrent artery of Heubner, Heubner's artery or distal medial striate artery is a branch of the anterior cerebral artery. It supplies the head of the caudate nucleus and adjacent part of the anterior limb of internal capsule, olfactory regions, and parts of the putamen and septal nuclei. It is named after the German paediatrician Otto Heubner.

Structure The recurrent artery of Heubner is a branch of the anterior cerebral artery. It has a mean diameter of 0.8 mm, and a mean length of 2.4 cm. It is also known together with the lenticulostriate arteries as a striate artery. The lenticulostriate arteries arise from the middle cerebral artery.

Variation The recurrent artery of Heubner usually arises from the A1-A2 junction (between 44% and 62% of the time), but may arise from the proximal A2 segment (between 23% and 43%), or more rarely from the A1 segment (maybe up to 14% of the time). The recurrent artery of Heubner has a very variable diameter and length. It varies in width from 0.2 mm to 1.3 mm. It varies in length between 0.9 cm and 3.8 cm.

Function The recurrent artery of Heubner supplies the anteromedial section of the caudate nucleus and the anterioinferior section of the internal capsule, as well as parts of the putamen and septal nuclei.

Clinical significance Infarction of the artery may brachiofacial hemiparesis due to ischemia of the anterior limb of internal capsule. More proximal portions of the artery may cause spastic paraparesis and sensory loss contralateral to the lesioned side. Urinary incontinence and gait apraxia may also occur. Occlusive damage to Heubner's artery may also present with contralateral grip reflex issues, and symptoms of frontal lobe disorder. Contralateral gaze preference with or without transcortical motor aphasia may present in instances where the left hemisphere is affected in this type of occlusion.

History The recurrent artery of Heubner is named after the German paediatrician Otto Heubner.

References

Worked examples

Example 1 — a first encounter with Recurrent artery of Heubner

Start with the simplest possible case. Write down what Recurrent artery of Heubner 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 Recurrent artery of Heubner 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 Recurrent artery of Heubner 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 Recurrent artery of Heubner

In research: Recurrent artery of Heubner 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 Recurrent artery of Heubner 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: Recurrent artery of Heubner is common in secondary-school and first-year university syllabi. It links to neighbouring topics Arteries of the head and neck, Cerebrum, Neuroanatomy stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Recurrent artery of Heubner 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 Recurrent artery of Heubner in 20 minutes

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Frequently asked questions

What is Recurrent artery of Heubner in simple terms?

Why does Recurrent artery of Heubner 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 Recurrent artery of Heubner?

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 Recurrent artery of Heubner.