Diaphragmatic apertures
Last revised by Henry Smith ◉ on 13 Apr 2018
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Citation:
Jones J, Smith H, Hacking C, et al. Diaphragmatic apertures. Reference article, Radiopaedia.org (Accessed on 07 Jun 2023) https://doi.org/10.53347/rID-5765
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5765
Article created:
21 Mar 2009, Jeremy Jones ◉
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At the time the article was created Jeremy Jones had no recorded disclosures.
View Jeremy Jones's current disclosuresLast revised:
13 Apr 2018, Henry Smith ◉
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At the time the article was last revised Henry Smith had no recorded disclosures.
View Henry Smith's current disclosuresRevisions:
12 times, by 5 contributors - see full revision history and disclosures
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The diaphragmatic apertures are a series of apertures that permit the passage of structures between the thoracic and abdominal cavities. There are three main apertures:
- aortic hiatus (T12) (not a true aperture)
- esophageal hiatus (T10)
- vena caval foramen (T8)
The vertebral levels of these apertures can be remembered by this mnemonic or by the number of letters in the spelling of vena cava (8), esophagus (10) and aortic hiatus (12).
There are also several smaller lesser apertures.
Related articles: Anatomy: Thoracic
- thoracic skeleton
- thoracic cage
- thoracic spine
- articulations
- muscles of the thorax
- diaphragm
- intercostal space
- intercostal muscles
- variant anatomy
- spaces of the thorax
- thoracic viscera
- lower respiratory tract
-
heart
- cardiac chambers
- heart valves
- cardiac fibrous skeleton
- innervation of the heart
- development of the heart
- cardiac wall
-
pericardium
- epicardium
- epicardial fat pad
- pericardial space
- oblique pericardial sinus
- transverse pericardial sinus
-
pericardial recesses
- aortic recesses
- pulmonic recesses
- postcaval recess
- pulmonary venous recesses
- pericardial ligaments
- myocardium
- endocardium
-
pericardium
- esophagus
- thymus
- breast
- arterial supply of the thorax
-
thoracic aorta (development)
-
ascending aorta
-
aortic root
- aortic annulus
-
coronary arteries
- coronary arterial dominance
- myocardial segments
-
left main coronary artery (LMCA)
- ramus intermedius artery (RI)
-
circumflex artery (LCx)
- obtuse marginal branches (OM1, OM2, etc))
- Kugel's artery
-
left anterior descending artery (LAD)
- diagonal branches (D1, D2, etc)
- septal perforators (S1, S2, etc)
-
right coronary artery (RCA)
- conus artery
- sinoatrial nodal artery
- acute marginal branches (AM1, AM2, etc)
- inferior interventricular artery (PDA)
- posterior left ventricular artery (PLV)
- congenital anomalies
- sinotubular junction
-
aortic root
- aortic arch
- aortic isthmus
- descending aorta
-
ascending aorta
- pulmonary trunk
-
thoracic aorta (development)
- venous drainage of the thorax
- superior vena cava (SVC)
- inferior vena cava (IVC)
-
coronary veins
-
cardiac veins which drain into the coronary sinus
- great cardiac vein
- middle cardiac vein
- small cardiac vein
- posterior vein of the left ventricle
- vein of Marshall (oblique vein of the left atrium)
- anterior cardiac veins
- venae cordis minimae (smallest cardiac veins or thebesian veins)
-
cardiac veins which drain into the coronary sinus
- pulmonary veins
- bronchial veins
- thoracoepigastric vein
- lymphatics of the thorax
- innervation of the thorax