Kinesiology 2222A/B Lecture Notes - Lecture 9: Pericardium, Mediastinum, Sternal Angle

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2222A/B
• Professor: Gillian Corbo

Document Summary

Divisions of the mediastinum: superior mediastinum = 1st rib sternal angle, not much going on here. Inferior mediastinum = 2nd rib diaphragm: anterior, middle**, posterior, middle is where the heart sits, middle compartment of the inferior mediastinum. Surface anatomy of heart: apex is found at the midclaviclular line. Pericardial sac: divides the inferior mediastinum into 3 sections by covering the heart, anchors heart to diaphragm, sternum, great vessels, contains fluid to prevent friction when heart beats. If (cid:449)e did(cid:374)(cid:859)t ha(cid:448)e a pe(cid:396)i(cid:272)a(cid:396)dial sa(cid:272), its like (cid:396)u(cid:374)(cid:374)i(cid:374)g (cid:449)ithout a spo(cid:396)ts (cid:271)(cid:396)a. Pulmonary trunk splits into pulmonary arteries: atrioventricular sulcus veins and arteries run in here, divides atriums and ventricles, anterior interventricular sulcus anterior sulcus between the ventricles. Interventriular septum separates left and right ventricles on the inside. Interatrial setum wall between left and right atrium. A (cid:271)a(cid:271)(cid:455) is (cid:271)o(cid:396)(cid:374) a(cid:374)d does(cid:374)(cid:859)t see(cid:373) to (cid:271)e getti(cid:374)g e(cid:374)ough o(cid:454)(cid:455)ge(cid:374) o(cid:396) (cid:271)lood flow.