2023年9月19日 · Since one function of the diaphragm is to provide passageway for structures from the thorax to the abdomen, its surface has several openings: caval opening (vena caval foramen), esophageal hiatus, and aortic hiatus.

There are a number of openings in the diaphragm through which structures pass between the thorax and abdomen. There are three large openings — one for the aorta (aortic hiatus), [2] one for the esophagus (esophageal hiatus), and one for the inferior vena cava (the caval opening), [8] as well as a series of smaller openings. [12] [13]

2024年11月20日 · Undergoes contraction and relaxation, altering the volume of the thoracic cavity and the lungs, producing inspiration and expiration. In this article, we shall look at the anatomy of the diaphragm – its attachments, actions and associated neurovascular structures. Access this feature with pro.

2023年8月8日 · The esophageal hiatus is located in the muscular aspect of the diaphragm near the right crus. It is located at the level of T10. The posterior and anterior vagal nerves are also found passing through this hiatus. Finally, the aortic hiatus is …

Caval hiatus: situated at the level of the T8 vertebra in the central tendon. The inferior vena cava and some right phrenic nerve branches pass through this hiatus. Oesophageal hiatus: situated at the level of the T10 vertebra.

2017年9月9日 · The three primary openings are: Caval opening (vena caval hiatus) at the 8th vertebral level: Allows the inferior vena cava [9] and the right phrenic nerve branches [11] to pass through. Esophageal opening (esophageal hiatus) at the 10th vertebra level: Transmits the esophagus, vagus nerves, and the small esophageal arteries [12].

2023年7月24日 · The esophageal hiatus lies at the level of the T10 vertebra in a sling of muscle fibers derived from the right crus at the left of the median plane. It allows passage of esophagus, the right and left vagus trunks, the esophageal branches …

2025年1月23日 · The esophageal opening (esophageal hiatus), through which the esophagus, right and left vagus nerves, and left gastric artery and vein pass; The aortic opening (aortic hiatus), through which the aorta, thoracic duct, and azygous vein pass; The caval opening (vena caval foramen), through which the inferior vena cava and parts of the phrenic ...

It has a mobile, central portion known as the central tendon and a peripheral muscular portion that is fixed to the bones, cartilages, and ligaments of the thoracic cage. The periphery of the diaphragm can be divided into three parts depending on its specific attachment points.

2021年3月16日 · Vena Cava Hiatus. The most cephalad hiatus is the vena caval hiatus, located at the T8 level approximately 2 cm to the right of the midline. In addition to the IVC, this diaphragmatic opening also provides a passage for branches of the right phrenic nerve and pericardiophrenic vessels.