Diaphragm - Origin Points, Openings and Coverings

Content
Introduction 0:00
Diaphragm Function 0:10
Content 0:55
Lumbar Origin: 1:16
Costal Origin: 3:15
Sternal Origin: 3:26
Openings of the Diaphragm 3:56
Sternocostal Triangle 4:56
Lumbocostal Triangle (Bochdalek's Foramen) 5:16
Lumbar Openings 6:05
Coverings of the Diaphragm 6:18

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Diaphragm Parts:
- Central Tendinous Part
- Muscular Part
- Main Muscle of Inspiration

Origin Points
Lumbar Part
- Right Crus
crus dextrum
- Left Crus
crus sinistrum
- Suspensory Muscle of Duodenum
(Muscle of Treitz)
- Lateral Arcuate Ligament
 ○ Quadratus Lumborum Muscle
- Median Arcuate Ligament
 ○ Aorta
- Medial Arcuate Ligament
 ○ Psoas Major Muscle
Costal Part
Sternal Part
- Xiphoid Porcess of Sternum

Openings of the Diaphragm
- Caval Opening
Foramen venae cavae
 ○ Inferior Vena Cava
 ○ Right Phrenic Nerve
- Oesophageal Hiatus
Hiatus oesophageus
 ○ Esophagus
 ○ N. Vagus
- Aortic Hiatus
Hiatus aorticus
 ○ Aorta
 ○ Thoracic Duct
- Sternocostal Triangle
Trigonum sternocostale
 ○ Internal Thoracic Vein
 ○ Internal Thoracic Artery
- Lumbocostal Triangle
Trigonum lumbocostale
 ○ ‘’Bochdalek's foramen’’
- Lumbar Part
Pars lumborum
 ○ Sympathetic Trunk
 ○ Splanchnic Trunk
 ○ Azygos Vein

Coverings of the Diaphragm
- Endothoracic Fascia
Fascia endothoracica
- Diaphragmatic part of Parietal Pleua
Endoabdominal Fascia
- Fascia endoabdominalis
- Peritoneum

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