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level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
What is the border where the superior and inferior mediastinum are dividedSternal angle anteriorly and T4/T5 posteiorly
What are the contents of the superior mediastinumGreat vessels → Arches of the aorta like brachiocephalic artery and superior vena cava Trachea Oesophagus Thymus
What are the contents of the inferior anterior mediastinumThymus
What are the contents of the inferior middle mediastinumHeart Great blood vessels Pericardium
What are the contents of the inferior posterior mediastinumOesophagus Descending thoracic aorta Sympathetic trunk
What are the different arches of aortaBrachiocephalic trunk → supplying the right side of the head and neck and the right upper limb Left Common Carotid Artery → to the left side of the head and neck Left Subclavian artery → to the left upper limb
What forms the majority of the anterior border of the heartRight ventricle
What part of the heart does the left ventricle formApex of the heart and diaphragmatic border
What is the tough CT layer covering the heartFibrous Pericardium
What are the different layers of the Serous PericardiumParietal , Pericardial cavity and visceral layer ( epicardium )
What is the nerve supply of the phrenic nerveC3-C5
What muscle holds the valves in place and if damage can lead to valve incompetencePapillary muscles
What is the function of the fibrous skeletonFibrous Tissue prevents free conduction of electrical signal from atria to ventricle Support of the valves as well
What does the left circumflex coronary artery supplySupplies the left atrium and ventricle
What does the anterior intraventricular artery supplyRight and left ventricles and 2/3 of the anterior septum
What does the Posterior interventricular artery supplyAV node
What is the dominant coronary arteryRight coronary artery
What does left marginal artery supplyLeft ventricle
What nerve supplies the parasympathetic NS to the heartVagus nerve ( CN X )
What nerve roots supplies the sympathetic NS to the heartT1-T4 part of the sympathetic chain