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level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
In the left lung how many lobes are there and what seperates them2 lobes - upper and lower Seperated by the oblique fissure
In the right lung how many lobes are there and what seperates them3 lobes - upper, middle and lower The upper,middle and lower are seperated by the oblique fissure The upper and middle are seperated by the horizontal fissure
What blood supply do the 2 pluera layers haveParietal pleura is supplied by the intercostal arteries & internal thoracic arteries and drained by the corresponding veins Visceral pleura is supplied by the bronchial arteries and drained by the bronchial veins
What are the main lymph nodes found in the lung regionHilar lymph nodes
What are some differences between right and left lungLeft lung is longer and narrower compared to the right lung Right lung has 2 main bronchi while left has only 1 Left has 2 lobes while Right has 3 lobes
What are the 3 locations of herniations in the diaphragmPosterolateral ( Bochdalek’s hernia ) Sub Costosternal ( Morgagni’s hernia ) Oesophageal ( Hiatal hernia
What are the different openings in the diaphragmMain opening is at T8 → Inferior vena cava and right phrenic nerve branches Another opening is in the T10 → Esophagus, lymphatics and gastric nerves Last opening is in the T12 --> Thoracic aorta, thoracic duct and azygous/hemiazygous veins
What is the diaphragm divided intoFirst divided into the muscular part and a central tendon Muscular part is then divided into Sternal → two fleshy slips from the back of the xiphoid process Costal → Internal surfaces of the lower 6 costal cartilages and their adjoining ribs Lumbar → Divided further into 2 parts depending on their origin : Medial and lateral arcuate ligaments From the ventral bodies