Crus of diaphragm

From WikiMD.com - Food, Medicine & Wellness Encyclopedia

(Redirected from Crus sinistrum diaphragmatis)

Crus of diaphragm refers to the two tendinous structures that extend inferiorly from the diaphragm, a muscle that plays a crucial role in respiration. The crura (plural of crus) anchor the diaphragm to the vertebral column.

Anatomy[edit | edit source]

The diaphragm is a dome-shaped muscle that separates the thoracic cavity from the abdominal cavity. The crura are located at the posterior aspect of the diaphragm. There are two crura - the right crus and the left crus.

The right crus is larger and longer than the left. It arises from the anterior surfaces of the bodies and intervertebral fibrocartilage of the upper three lumbar vertebrae.

The left crus arises from the bodies of the upper two lumbar vertebrae.

The crura are connected to each other by the median arcuate ligament.

Function[edit | edit source]

The primary function of the crura is to provide points of attachment for the diaphragm. They help in stabilizing the position of the diaphragm, preventing it from being pushed up into the thoracic cavity when the abdominal muscles contract.

The crura also play a role in the opening and closing of the esophageal hiatus, the opening in the diaphragm through which the esophagus passes.

Clinical significance[edit | edit source]

Abnormalities or injury to the crura can lead to conditions such as hiatal hernia, where a part of the stomach pushes up through the esophageal hiatus into the chest.

See also[edit | edit source]

Bone.png
This article is a stub related to anatomy. You can help WikiMD by expanding it!


Crus of diaphragm gallery[edit | edit source]

WikiMD
Navigation: Wellness - Encyclopedia - Health topics - Disease Index‏‎ - Drugs - World Directory - Gray's Anatomy - Keto diet - Recipes

Transform your life with W8MD's budget GLP1 injections from $125

W8mdlogo.png
W8MD weight loss doctors team

W8MD offers a medical weight loss program NYC and a clinic to lose weight in Philadelphia. Our W8MD's physician supervised medical weight loss centers in NYC provides expert medical guidance, and offers telemedicine options for convenience.

Why choose W8MD?

Book Your Appointment

Start your NYC weight loss journey today at our NYC medical weight loss, and Philadelphia medical weight loss Call (718)946-5500 for NY and 215 676 2334 for PA

Search WikiMD

Ad.Tired of being Overweight? Try W8MD's NYC physician weight loss.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available. Call 718 946 5500.
Advertise on WikiMD

WikiMD's Wellness Encyclopedia

Let Food Be Thy Medicine
Medicine Thy Food - Hippocrates

Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates, categories Wikipedia, licensed under CC BY SA or similar.

Contributors: Prab R. Tumpati, MD