Thoracic diaphragm | Wikipedia audio article
Channel: Subhajit Sahu
Date: 2018-12-03

This is an audio version of the Wikipedia Article:
Thoracic diaphragm


00:01:15 1 Structure
00:02:22 1.1 Crura and central tendon
00:02:51 1.2 Openings
00:04:17 1.3 Nerve supply
00:04:48 1.4 Blood supply
00:05:30 1.5 Variation
00:05:48 1.6 Development
00:07:10 2 Function
00:09:14 3 Clinical significance
00:09:24 3.1 Paralysis
00:09:52 3.2 Herniation
00:11:25 3.3 Imaging
00:12:06 4 Significance in strength training
00:13:20 5 Other animals
00:15:53 6 See also



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SUMMARY
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This article is about the anatomic structure. For other uses, see Diaphragm (disambiguation).The thoracic diaphragm, or simply the diaphragm (Ancient Greek: διάφραγμα, translit. diáphragma, lit. 'partition'), is a sheet of internal skeletal muscle in humans and other mammals that extends across the bottom of the thoracic cavity. The diaphragm separates the thoracic cavity, containing the heart and lungs, from the abdominal cavity and performs an important function in respiration: as the diaphragm contracts, the volume of the thoracic cavity increases and air is drawn into the lungs.
The term diaphragm in anatomy can refer to other flat structures such as the urogenital diaphragm or pelvic diaphragm, but "the diaphragm" generally refers to the thoracic diaphragm. In humans, the diaphragm is slightly asymmetric—its right half is higher up (superior) to the left half, since the large liver rests beneath the right half of the diaphragm. There is also a theory that the diaphragm is lower on the other side due to the presence of the heart.
Other mammals have diaphragms, and other vertebrates such as amphibians and reptiles have diaphragm-like structures, but important details of the anatomy vary, such as the position of the lungs in the abdominal cavity.