Tiêu đề item 3 handout of heart 16 augsr.pdf ✅

T Thorax card : contain only must know topics/ valid for 2025 Student name : roll ...........................Batch 2 Venous drainage of pericardium  Fibrous and parietal pericardium are drained by azygous veins and internal thoracic veins.  Visceral pericardium is supplied by coronary sinus. Nerve supply of pericardium The fibrous pericardium and the parietal part of thpericardium are pain sensitive and supplied by the phrenic nerve. The visceral pericardium is insensitive; therefore, the pain from the pericardium originates in the parietal layer only and is transmitted by the phrenic nerve. Fibrous and parietal pericardium are supplied by  Phrenic nerve 4. Visceral pericardium is supplied by vagus and sympathetic nerves via coronaryty plexus. Transverse sinus. Boundaries: In front- ascending aorta and pulmonary trunk enclosed in a single layer of serous pericardium. Behind - Intra pericardial part of superior vena cava and upper portion of atrium and their auricles. Transverse sinus - what it indicates developmentally? Transverse sinus is developed by the degeneration of the central cells of the dorsal mesocardium. Importance of transverse sinus. Ans. During cardiac surgery, the transverse pericardial sinus allows a surgeon to isolate the pulmonary trunk and ascending aorta and apply a temporary ligature or clamp.
T Thorax card : contain only must know topics/ valid for 2025 Student name : roll ...........................Batch 3 Show oblique sinus. Ans. It is a cul-de-sac behind the left atrium. Boundaries In front - Left atrium. Behind -Parietal layer of serous peri cardium. Right side - Right pair of pulmonary vein and inferior vena cava. Left side - Lest pair of pulmonaryveins. Importance of oblique sinus. Ans. 1. It gives space to expose the heart during atrial diastole. 2. It permits pulsation of the left atrium and hence known as cardiac bursa.