HTHSCI 1H06 Lecture Notes - Lecture 1: Dense Irregular Connective Tissue, Coronary Circulation, Serous Fluid

• School: McMaster University
• Department: Health Sciences
• Course: HTHSCI 1H06
• Professor: Peter Helli

Document Summary

Pericardium: suspends the heart in the mediastinum while allowing it to move during contractions. It attaches to the diaphragm and connects to the entering blood vessels of the heart. Serous pericardium : deep to the fibrous layer. It is thin and forms a double layer around the heart (parietal 7 & visceral). This double layer contains serous fluid that reduces friction and allows the hear to move in the cavity. Coronary arteries: the myocardium s network of blood vessels. Branches into the left anterior descending (lad) artery and the left circumflex branches. The circumflex branch lies in the coronary sulcus. Coronary veins: most of the deoxygenated blood form the myocardium drains in the coronary sinus that lies in the coronary sulcus and drains blood into the right atrium. Great cardiac vein: lies in the anterior ventricular sulcus and drains blood from the left coronary artery (l and r ventricles and l atrium).