Diaphragm Flashcards
What two cavities does the diaphragm separate?
Thorax and Abdomen
Which dome of the diaphragm is higher than the other?
Right
What are the two parts of the diaphragm?
Muscular part and the central tendon
What are the origins for the muscular part of the diaphragm?
1) Xiphoid Process
2) Lower 6 Costal Cartilages
3) L1-3 and themedial and lateral arcuate ligaments
What is the insertion point of the diaphragm?
The Central Tendon
At what vertebral level is the caval opening?
T8
What travels through the caval opening?
1) Inferior Vena Cava
2) Right Phrenic Nerve
Which structure is firmly adhered to the caval opening?
Inferior Vena Cava
What vertebral level is the esophageal hiatus found?
T10
T/F: The esophagus is firmly adhered to the diaphragm at eh esophageal opening.
False. It is not adhered at all so it can slide around
What travels through the esophageal hiatus?
1) Esophagus,
2) anterior and posterior vagal trunks
At what level does the aortic hiatus lie?
T12
What is transited through the aortic hiatus?
1) Aorta
2) Thoracic Duct
3) Azygos Vein
What is the blood supply to the diaphragm as eh whole?
1) Musculophrenic Artery
2) Paericardiacophrenic Artery
3) Superior Phrenic Artery
4) Inferiro Phrenic Artery
Which artery supplies the central tendon of the diaphragm?
Pericadiacophrenic artery
What is the innervation of the diaphragm?
1) Phrenic Nerve
2) Intercostal Neves
An injury to what spinal levels would cause paralysis to the diaphragm?
C3, C4, C5 (origin of the Phrenic Nerve)
What is the clinical condition where teh stomach begins to pass through the esophageal hiatus?
Hiatal Hernia
What age does the hiatal hernia usually present?
After age 50
Whet is a spasmodic contraction of the diaphragm?
Hiccups
In general, what is the cause of hiccups?
Irritation of the phrenic nerve
