ZOO 3733C Study Guide - Quiz Guide: Pneumothorax, Cricothyroid Ligament, Trachea
Document Summary
Infant life: foramen ovale adult life: fossa ovale (#55) Infant life: ductus arteriosus adult life: ligamentum arteriosum (#10) Layers of heart (4) superficial to innermost: pericardium, visceral pericardium = epicardium, myocardium main mass; heart tissue, endocardium thin layer covering inner surface of heart. Right coronary artery (rca) supplies r. atrium, sa & av nodes, posterior. Left coronary artery (lca) supplies l. atrium, l. ventricle, interventricular septum, av bundles, sometimes sa node. Anterior interventricular a. (aka left anterior descending a. ) Main cardiac veins drain into coronary sinus (#27: great cardiac v. (goes around heart) Found on left side along ant. interventricular groove. Runs along l. coronary sulcus (circumflex branch*: small cardiac v. R. marginal a. (#63: middle cardiac v. **small & middle cardiac v. drain most of the blood supplied by r. coronary a. R. ventricle 3 sources of deoxygenated blood for right atrium: superior vena cava, inferior vena cava, coronary sinus.
