conus arteriosus: meaning, definition, pronunciation and examples
Very RareExclusively Technical/Medical (Comparative Anatomy, Embryology, Veterinary Medicine)
Quick answer
What does “conus arteriosus” mean?
A conical pouch at the base of the pulmonary trunk in the right ventricle of the heart in lower vertebrates and some mammals, serving as a vestibule to the pulmonary artery.
Audio
Pronunciation
Definition
Meaning and Definition
A conical pouch at the base of the pulmonary trunk in the right ventricle of the heart in lower vertebrates and some mammals, serving as a vestibule to the pulmonary artery.
In comparative anatomy and embryology, refers to the chamber responsible for directing deoxygenated blood from the ventricle to the pulmonary circulation (gills or lungs). Its developmental remnant persists in the human heart as the infundibulum of the right ventricle.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or conceptual differences. Usage is identical in both UK and US medical and scientific literature.
Connotations
Neutral anatomical descriptor in both varieties.
Frequency
Equally rare in both, confined to specialised anatomical and biological texts.
Grammar
How to Use “conus arteriosus” in a Sentence
The conus arteriosus [VERB: leads to, connects to, directs blood to, is part of] [OBJECT: the pulmonary artery, the ventricle, the circulatory system].Vocabulary
Collocations
Usage
Meaning in Context
Business
Not used.
Academic
Used exclusively in biological/medical papers, textbooks on comparative vertebrate anatomy, embryology, and zoology.
Everyday
Never used.
Technical
Core term in descriptions of non-mammalian vertebrate and fetal mammalian heart structure.
Vocabulary
Synonyms of “conus arteriosus”
Neutral
Weak
Vocabulary
Antonyms of “conus arteriosus”
Watch out
Common Mistakes When Using “conus arteriosus”
- Misspelling as 'conus arteriosis' (confusing it with the disease arteriosclerosis).
- Using it to describe the entire right ventricle in adult humans.
FAQ
Frequently Asked Questions
No. In adult human anatomy, the homologous structure is the infundibulum of the right ventricle. The term 'conus arteriosus' is used primarily for lower vertebrates and in an embryonic context.
It acts as a vestibule or conduit to direct deoxygenated blood from the single ventricle (or right ventricle) into the pulmonary artery (or its equivalent, like the gill arteries).
It is a highly specialised term from comparative anatomy. Everyday discussions about the human heart use terms like 'pulmonary artery' and 'ventricle' instead.
Yes. 'Arteriosus' is a Latin adjective meaning 'arterial'. It signifies the structure's connection to the arterial (outflow) side of the heart.
A conical pouch at the base of the pulmonary trunk in the right ventricle of the heart in lower vertebrates and some mammals, serving as a vestibule to the pulmonary artery.
Conus arteriosus is usually exclusively technical/medical (comparative anatomy, embryology, veterinary medicine) in register.
Conus arteriosus: in British English it is pronounced /ˈkəʊ.nəs ɑːˌtɪə.riˈəʊ.səs/, and in American English it is pronounced /ˈkoʊ.nəs ɑːrˌtɪr.iˈoʊ.səs/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Imagine a traffic CONE (conus) directing ARTERial (arteriosus) blood flow out of the heart. 'Cone for Arteries'.
Conceptual Metaphor
A specialized vestibule or funnel guiding blood flow.
Practice
Quiz
In which anatomical context is the term 'conus arteriosus' MOST accurately applied?