thoracic artery: meaning, definition, pronunciation and examples
C2 / SpecializedTechnical / Medical
Quick answer
What does “thoracic artery” mean?
An artery that supplies blood to the chest wall, thoracic organs, or related structures. Specifically, it often refers to the 'internal thoracic artery' (also known as the mammary artery) which runs down the inside of the front chest wall.
Audio
Pronunciation
Definition
Meaning and Definition
An artery that supplies blood to the chest wall, thoracic organs, or related structures. Specifically, it often refers to the 'internal thoracic artery' (also known as the mammary artery) which runs down the inside of the front chest wall.
In broader anatomical context, 'thoracic artery' can refer to any of several arteries originating from the aorta or subclavian arteries to serve the thoracic cavity, including the superior and lateral thoracic arteries. It is a key conduit in coronary artery bypass grafting (CABG).
Dialectal Variation
British vs American Usage
Differences
No significant semantic differences. British medical texts may historically prefer 'internal mammary artery' over 'internal thoracic artery' more often than American ones, though both terms are fully understood and used interchangeably in both regions.
Connotations
Purely technical, anatomical term with no regional cultural connotations.
Frequency
Extremely low frequency outside medical/surgical contexts. Equal frequency in relevant professional domains in both regions.
Grammar
How to Use “thoracic artery” in a Sentence
The [internal] thoracic artery supplies [blood to] the [anterior chest wall].The surgeon harvested the [left] thoracic artery for [the bypass graft].A branch of the thoracic artery anastomoses with [the intercostal arteries].Vocabulary
Collocations
Examples
Examples of “thoracic artery” in a Sentence
verb
British English
- The surgeon will thoracic-artery-graft the vessel.
American English
- The team decided to use the thoracic artery for grafting.
adverb
British English
- The vessel was anastomosed thoracic-artery-first.
American English
- The procedure was performed using a thoracic-artery-specific technique.
adjective
British English
- The thoracic-artery graft showed excellent long-term patency.
American English
- A thoracic-artery conduit is the preferred choice.
Usage
Meaning in Context
Business
Not applicable.
Academic
Used in medical textbooks, anatomy lectures, and surgical research papers. Example: 'The study compared patency rates of saphenous vein and thoracic artery grafts.'
Everyday
Virtually never used. If mentioned, it would be in the context of a patient discussing specific heart surgery details.
Technical
Core term in cardiothoracic surgery, interventional radiology, and gross anatomy. Example: 'Prepare for ITA harvest via a median sternotomy.'
Vocabulary
Synonyms of “thoracic artery”
Strong
Neutral
Weak
Vocabulary
Antonyms of “thoracic artery”
Watch out
Common Mistakes When Using “thoracic artery”
- Pronouncing 'thoracic' as /θəˈreɪ.sɪk/ (incorrect) instead of /θɔːˈræs.ɪk/. Spelling error: 'tharacic artery'. Using 'thoracic artery' as a general term for any chest artery without specifying (e.g., 'aortic arch' is not a thoracic artery).
FAQ
Frequently Asked Questions
No. The aorta is the main and largest artery in the body. The thoracic artery (usually referring to the internal thoracic artery) is a specific, much smaller artery that branches off the subclavian artery and supplies the chest wall. The thoracic *aorta* is the part of the aorta that lies within the chest.
It is preferred because it has a demonstrably higher long-term patency (stays open) rate than grafts using veins from the leg (like the saphenous vein). It is also naturally resistant to atherosclerosis in its proximal segment.
Yes. The body has extensive collateral circulation in the chest wall. If one internal thoracic artery is harvested for surgery, the other side and other arteries (like intercostal and epigastric arteries) compensate to supply the affected areas.
The internal thoracic artery runs vertically behind the sternum and ribs. The intercostal arteries run horizontally, within the spaces between the ribs (intercostal spaces). The internal thoracic artery gives off branches that become the anterior intercostal arteries for the upper spaces.
An artery that supplies blood to the chest wall, thoracic organs, or related structures. Specifically, it often refers to the 'internal thoracic artery' (also known as the mammary artery) which runs down the inside of the front chest wall.
Thoracic artery is usually technical / medical in register.
Thoracic artery: in British English it is pronounced /θɔːˌræs.ɪk ˈɑː.tər.i/, and in American English it is pronounced /θɔˌræs.ɪk ˈɑr.t̬ɚ.i/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: THORacic for your THORax (chest). This ARTERY is found in your chest. Internal Thoracic Artery = Inside (Internal) the chest (Thoracic) pipe (Artery).
Conceptual Metaphor
CONDUIT metaphor (artery as a pipe/channel for blood). SOURCE-PATH-GOAL schema (originates from subclavian, travels down chest wall, supplies target tissues).
Practice
Quiz
What is a primary clinical advantage of using the internal thoracic artery in cardiac surgery?