arteriole: meaning, definition, pronunciation and examples
C1/C2Formal, Technical, Scientific
Quick answer
What does “arteriole” mean?
A very small branch of an artery that leads into capillaries.
Audio
Pronunciation
Definition
Meaning and Definition
A very small branch of an artery that leads into capillaries.
In anatomy and physiology, any of the smallest arterial vessels that regulate blood flow and pressure into capillary beds; a key component in microcirculation and vascular resistance.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or definitional differences. Spelling and pronunciation are consistent.
Connotations
Purely technical/medical in both varieties.
Frequency
Equally low-frequency and technical in both UK and US English, confined to professional and academic discourse.
Grammar
How to Use “arteriole” in a Sentence
The arteriole [verb e.g., constricts, dilates, branches]Arterioles supply [noun e.g., blood, oxygen] to [noun e.g., capillaries, tissue]Vocabulary
Collocations
Examples
Examples of “arteriole” in a Sentence
verb
British English
- The drug causes the vessels to arteriolise, forming new micro-vascular networks.
- The tissue began to arteriolise after the graft.
American English
- The drug causes the vessels to arteriolize, forming new microvascular networks.
- The tissue began to arteriolize after the graft.
adjective
British English
- The arteriolar network was clearly visible under the microscope.
- We observed significant arteriolar constriction.
American English
- The arteriolar network was clearly visible under the microscope.
- We observed significant arteriolar constriction.
Usage
Meaning in Context
Business
Not used.
Academic
Core term in physiology, anatomy, pharmacology, and medical research.
Everyday
Extremely rare; would only appear in detailed patient explanations or advanced popular science.
Technical
Essential term in medicine, cardiology, nephrology, and microvascular surgery.
Vocabulary
Synonyms of “arteriole”
Neutral
Vocabulary
Antonyms of “arteriole”
Watch out
Common Mistakes When Using “arteriole”
- Misspelling as 'arterial', 'arteryole', or 'artiole'.
- Using it as a general term for any artery.
- Incorrect pronunciation stress on the first syllable (/ˈɑːtərioʊl/).
FAQ
Frequently Asked Questions
No. An arteriole is a small, muscular vessel that leads *to* capillaries. Capillaries are the ultra-thin vessels where actual exchange of gases and nutrients with tissues occurs.
No. Arterioles are too small and deep within tissues to have a palpable pulse, which is typically felt in larger arteries.
Arterioles are the main vessels that constrict or dilate to create 'peripheral resistance'. Their diameter directly controls blood pressure; widespread constriction raises pressure, while dilation lowers it.
The direct counterpart on the venous side is a 'venule', which is a small vessel that collects blood from capillaries and merges to form veins.
A very small branch of an artery that leads into capillaries.
Arteriole is usually formal, technical, scientific in register.
Arteriole: in British English it is pronounced /ɑːˈtɪəriəʊl/, and in American English it is pronounced /ɑːrˈtɪrioʊl/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: ARTERY + (l)ittle = ARTERIOLE. It's a tiny artery.
Conceptual Metaphor
A PIPELINE BRANCH or WATER NARROWING: Arterioles are often conceptualized as the smaller pipes branching off a main pipe (artery) that can narrow or widen to control flow.
Practice
Quiz
What is the primary function of an arteriole?