ANATOMY - Diaphragm Flashcards
What are the two regions of the diaphragm?
Muscular rim
Tendinous centre
Which type of muscle makes up the muscular rim of the diaphragm?
Skeletal muscle
What are the three regions of the muscular rim?
Costal region
Sternal region
Lumbar region
What is the costal point of attachment of the diaphragm?
The costal region of the diaphragm attaches to the medial surface of ribs eight to thirteen
What is the sternal point of attachment of the diaphragm?
The sternal region of the diaphragm attaches to the xiphoid intersternebral cartilage
What is the lumbar point of attachment of the diaphragm?
The lumbar region of the diaphragm attaches via a left and right crura to the ventral longitudinal ligament of the lumbar vertebrae
Where along the lumbar vertebrae does the left and right crura attach to the ventral longitudinal ligament?
Left crura: L1-L2
Right crura: L1-L4
What is the weakest point of the diaphragm?
Lumbocostal arch
What are the three foramina of the diaphragm?
Aortic hiatus
Oesophageal hitaus
Caval formen
Which structures travel through the aortic hiatus?
Aorta
Azygos vein
Thoracic duct
Which structures travel through the oesophageal hiatus?
Oesophagus
Vagus nerve
Which structure travels through the caval foramen?
Caudal vena cava
Which arteries supply the diaphragm?
Musculophrenic artery
Caudal phrenic artery
Which nerves supply the diaphragm?
Right phrenic nerve
Left phrenic nerve
