Health Sciences 2300A/B Lecture Notes - Lecture 15: Papillary Muscle, Trabecula, Mitral Valve
19 Mar 2018
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Document Summary
Superior mediastinum boundaries are from the first rib to the sternal angle opens up as you move posteriorly. Contains large blood vessels that come off the heart or enter into the heart. Inferior mediastinum great vessels carry on through the posterior mediastinum. Trachea windpipe that passes behind the great vessels. Base of heart the top where all of the great vessels enter and exit. Diaphragm in close proximity to the heart. Apex of heart pointy region at the bottom of the heart. The ribs and clavicle are used bottom edge of heart sits b/w 5th and 6th rib. Mid clavicular line aligns with the apex of the heart. What you would see when the chest plate is removed. Divides the mediastinum up into the three regions (separates anterior/posterior from the middle) Anchors to the diaphragm, sternum and great vessels. Also contains fluid which prevents friction and allows the heart to beat properly.
