Lesser diaphragmatic apertures
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At the time the article was created Jeremy Jones had no recorded disclosures.
View Jeremy Jones's current disclosuresAt the time the article was last revised Craig Hacking had the following disclosures:
- Philips Australia, Paid speaker at Philips Spectral CT events (ongoing)
These were assessed during peer review and were determined to not be relevant to the changes that were made.
View Craig Hacking's current disclosures- Lesser apertures of the diaphragm
The lesser diaphragmatic apertures allow the passage of smaller structures from the thoracic cavity to abdominal cavity across the diaphragm. They are very much smaller than the other diaphragmatic apertures:
two in the right crus of the diaphragm: transmit greater and lesser right splanchnic nerves
three in the left crus of the diaphragm: transmit greater and lesser left splanchnic nerves as well as the hemiazygos vein
under the medial arcuate ligament: usually transmit the sympathetic trunks
under the lateral arcuate ligament: subcostal nerve and vessels
left phrenic nerve pierces the dome of the left hemidiaphragm
A small interval exists between the sternal and costal parts of the diaphragm where the muscular fibres of the diaphragm are deficient and are replaced by areolar tissue and through which the superior epigastric branch of the internal mammary artery and some lymphatics from the abdominal wall and convex surface of the liver pass through.
References
- 1. Standring S (editor). Gray's Anatomy (39th edition). Churchill Livingstone. (2011) ISBN:0443066841. Read it at Google Books - Find it at Amazon
- 2. McMINN. Lasts Anatomy Regional and Applied. CHURCHILL LIVINGSTONE. (2003) ISBN:B0084AQDG8. Read it at Google Books - Find it at Amazon
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