| In the left lung how many lobes are there and what seperates them | 2 lobes - upper and lower
Seperated by the oblique fissure |
| In the right lung how many lobes are there and what seperates them | 3 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 have | Parietal 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 region | Hilar lymph nodes |
| What are some differences between right and left lung | Left 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 diaphragm | Posterolateral ( Bochdalek’s hernia )
Sub Costosternal ( Morgagni’s hernia )
Oesophageal ( Hiatal hernia |
| What are the different openings in the diaphragm | Main 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 into | First 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 |
