bundle of his
C2 (High technical specificity)Medical/Technical/Anatomical. Exclusively used in professional healthcare, biology, and medical education contexts.
Definition
Meaning
A specialized bundle of cardiac muscle fibers that conducts electrical impulses from the atrioventricular node to the ventricles, coordinating heart contractions.
In cardiology and anatomy, the atrioventricular bundle, a crucial part of the heart's electrical conduction system ensuring synchronized ventricular contraction. No extended metaphorical use is common.
Linguistics
Semantic Notes
Always refers to the specific anatomical structure. The term is invariant ('bundle of His,' not 'bundles of His' in standard reference, though 'bundles' may appear in descriptive pathology). It is a proper noun derived from the name of the discoverer, Wilhelm His Jr.
Dialectal Variation
British vs American Usage
Differences
No lexical or conceptual differences. Spelling and pronunciation follow standard national conventions for other words in the sentence.
Connotations
Identically technical and precise in both dialects.
Frequency
Identically low frequency outside medical contexts. Equally common in medical literature and education in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
The bundle of His [verb: conducts, transmits, branches, divides][Adjective: damaged, intact, blocked] bundle of HisImpulses pass through the bundle of His.Vocabulary
Synonyms
Neutral
Weak
Usage
Context Usage
Business
Not used.
Academic
Exclusively in medical, biological, and anatomical textbooks, research papers, and lectures.
Everyday
Virtually never used. Would only appear in detailed patient education by a cardiologist.
Technical
The primary context. Used in cardiology, physiology, surgery, medical diagnostics (e.g., ECG interpretation), and biomedical engineering.
Examples
By Part of Speech
verb
British English
- The cardiologist explained how the impulse traverses the bundle of His.
- If the bundle of His is damaged, it can block the signal.
American English
- The impulse travels down the bundle of His to the Purkinje fibers.
- They had to map the exact pathway of the bundle of His.
adjective
British English
- The bundle-of-His conduction time is a critical parameter.
- A bundle-of-His electrogram was recorded during the procedure.
American English
- The bundle-of-His potential was measured directly.
- They studied the bundle-of-His physiology in detail.
Examples
By CEFR Level
- The doctor mentioned a problem with the heart's electrical system, specifically a bundle of His block.
- In biology class, we learned that the bundle of His helps the heart beat regularly.
- An infarction affecting the bundle of His can lead to complete heart block, necessitating a pacemaker.
- The electrophysiology study aimed to measure the conduction delay within the bundle of His itself.
Learning
Memory Aids
Mnemonic
Think: 'His' bundle is the heart's 'high-speed' electrical cable, connecting the AV node (the gatekeeper) to the ventricles (the pumps). The impulse is on HIS way to the ventricles.
Conceptual Metaphor
THE HEART'S ELECTRICAL WIRING/CIRCUITRY. The bundle is conceptualized as a cable, conduit, or trunk line for electrical signals.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating 'of His' as принадлежащий ему. It is an eponym (name-based term). The Russian equivalent is 'пучок Гиса'.
- Do not confuse with general 'bundle' (связка, пучок) in non-medical contexts. This is a fixed term.
Common Mistakes
- Pronouncing 'His' as the possessive pronoun /hɪz/ instead of the name /hɪs/.
- Omitting the capitalization of 'His' in writing.
- Using a plural verb with the singular 'bundle' (e.g., 'The bundle of His are...' is incorrect).
Practice
Quiz
What is the primary function of the bundle of His?
FAQ
Frequently Asked Questions
No. The AV node is a separate structure that receives the impulse from the atria and introduces a slight delay. The bundle of His carries the impulse *from* the AV node down to the ventricles.
It is an eponym, named after the Swiss cardiologist and anatomist Wilhelm His Jr., who discovered this specialized tissue in 1893.
Typically, no. In a normal human heart, there is a single atrioventricular bundle (bundle of His), which then bifurcates into left and right bundle branches. Rare anatomical variations exist.
Yes, it is used in veterinary medicine and comparative anatomy for mammals with similar cardiac conduction systems.