BIOL 208 Study Guide - Midterm Guide: Posterior Interventricular Artery, Great Cardiac Vein, Middle Cardiac Vein
30 Oct 2017
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Fibrous pericardium, serous pericardium (includes parietal and visceral layers w/pericardial cavity in between: fibrous pc. Connects to blood vessels, thick/connective membrane: serous pc. Includes parietal (touching fibrous) and visceral layer( touching myocardium) Serous membrane lined by mesothelial cells that create serous fluid: digestive tract, lungs, heat where 3 serous membranes found. Myocardium: middle, 98% thickness of the heart. Aspects of heart anatomy: coronary, anterior, posterior. Landmark for posterior part of interventricular septum: posterior interventricular artery, middle cardiac vein. Fossa ovalis: allows oxygenate blood to go directly to heart (skip pulmonary circulation) in fetus: reminant of foramen ovale in fetus, and eventually closes. Papillary muscles: muscles extend from lower part of ventricles, connect to chordae tendinae, then connect to. Av valve; prevent valve from opening during contractions (stopping backflow: coronary circulation. Is a junction of 2 or more vessels supplying the same body region and provides for collateral circulation: ex. Autorhythmic cells: specialized; automatically and spontaneously depolarize/polarize.
