Right coronary artery
(Redirected from
Right coronary arteries
)Right coronary artery | |
---|---|
left ventricle | |
Identifiers | |
Latin | arteria coronaria dextra |
Acronym(s) | RCA |
TA98 | A12.2.03.101 |
TA2 | 4131 |
FMA | 50039 |
Anatomical terminology] |
In the
conus artery, [4] and atrioventricular nodal branch.[citation needed] It contributes the right side of the heart, and parts of the interventricular septum.[2][5]
Structure
The right coronary artery originates above the right aortic sinus above the aortic valve.[1][2] It passes along the right coronary sulcus (right atrioventricular groove) towards the crux of the heart.[1][3]
Segments
- Proximal: starting at RCA origin, spanning half the distance to the acute margin[6][7]
- Middle: from proximal segment to the acute margin[6][7]
- Distal: from middle segment to origination point of the posterior interventricular artery, where the
Variation
In approximately 80% of patients (right dominant), the RCA gives off the
ventricular septum, and the posteromedial papillary muscle.[citation needed
]
The RCA also supplies the
left circumflex artery.[citation needed
]
Although rare, several anomalous courses of the right coronary artery have been described including origin from the left aortic sinus.[9]
Distribution
The right coronary artery supplies oxygenated blood to the
left ventricle (LV).[10]
There is significant overlap of supply of the coronary arteries.[2] The right coronary artery is dominant over the left coronary artery 50% of the time, equal to it 20% of the time, and less significant than it 30% of the time.[2]
Additional images
-
Right coronary artery
-
The arch of the aorta, and its branches.
-
Diagram of a myocardial infarction.
-
ostiumcan be seen at the lower left.
-
Human heart with coronary arteries
-
Fetal heart - right coronary artery
References
- ^ ISBN 978-0-12-811908-2, retrieved 2020-11-20
- ^ ISBN 978-0-323-08697-4, retrieved 2020-11-20
- ^ ISBN 978-0-12-805154-2, retrieved 2020-11-20
- ISBN 978-0-12-811908-2, retrieved 2020-11-20
- ^ ISBN 978-0-323-04418-9, retrieved 2020-11-20
- ^ PMID 27358682.
- ^ PMID 17515392.
- PMID 30725892.
- PMID 25027456.
- ISBN 978-1-4471-6356-5.
External links
- Overview at Cleveland Clinic
- 00462 at CHORUS
- thoraxlesson4 at The Anatomy Lesson by Wesley Norman (Georgetown University) (heartantmajorvessels)
- Anatomy figure: 20:03-04 at Human Anatomy Online, SUNY Downstate Medical Center - "Anterior view of the heart."