1. Match the heart structure with the description.MediastinumA. The thinner, more delicate membrane that forms a double layeraround the heart.Арех.B. Middle layer of the heart responsible for the pumping action ofthe heart and is composed of cardiac muscle tissueC. Valve located between the right atrium and right ventricle -closes to prevent blood from going back into right atriumFibrous pericardiumSerous pericardiumD. Anatomical region that extends from the stemum to thevertebral column, from the first rib to the diaphragm, and betweenthe lungs. Location of the heart.EpicardiumE. Chamber that receives deoxygenated blood from the rightatrium and pumps it out to the pulmonary trunk through thepulmonary semilunar valve.F. Smooth, innermost layer of the heart wall in direct contact withthe blood being pumped.MyocardiumEndocardiumG. Wrinkled pouch like structure on the anterior surface of eachatrium - increase the capacity of the atriaAuricleH. The pointed tip of the left ventricle that rests on the diaphragm.I. Oval depression within the interatrial septum. Remnant of theforamen ovale, an opening in the septum of the fetal heart.Right atriumJ. Smooth, slippery external layer of the heart wall also known asthe visceral layer of the serous pericardium.Pectinate muscles,K. Heart chamber that receives deoxygenated blood from threeveins: the superior vena cava, inferior vena cava, and coronarysinusFossa ovalisL. The superficial part of the pericardium made of tough, inelastic,dense irregular connective tissue. Prevents overstretching,provides protection, and anchors the heart.Tricuspid valveM. Muscular ridges within the anterior wall and auricle of the rightatrium.Right ventricleN. Blood vessels that move deoxygenated blood towards thelungs.Pulmonary arteriesChordae tendineaeO. Left atrioventricular valve, also known as the Mitral valve.Papillary musclesP. Blood vessels that move oxygenated blood towards the heart.Pulmonary veinsQ. Receives blood from coronary veins and drains into the rightatrium.Pulmonary valveR. Semilunar valve that prevents blood from moving backwardsfrom the pulmonary trunk into the right ventricle.S. Remnant of the ductus arterioles, a temporary blood vesselbetween the pulmonary trunk and aorta.Left atriumT. Tendonlike, fibrous cords that connect atrioventricular valves ofthe heart with papillary muscles.Bicuspid valveU. Heart chamber that pumps oxygenated blood through the aorticvalve to the aorta.Left ventricleV. Semilunar valve that prevents blood from moving backwardsfrom the aorta into the left ventricle.Aortic valveW. Cone-shaped muscles that contract to tighten the chordaetendineae thus preventing the cusps from prolapse.Ligamentum arteriosumX. Heart chamber that receives oxygenated blood from 4pulmonary veins.Coronary sinus

The heart is the organ of the human body that is responsible for pumping the blood and helps in its…

1. Match the heart structure with the description. Mediastinum A. The thinner, more delicate membrane that forms a double layer around the heart. Арех B. Middle layer of the heart responsible for the pumping action of the heart and is composed of cardiac muscle tissue Fibrous pericardium C. Valve located between the right atrium and right ventricle - closes to prevent blood from going back into right atrium D. Anatomical region that extends from the stemum to the vertebral column, from the first rib to the diaphragm, and between the lungs. Location of the heart. Serous pericardium E. Chamber that receives deoxygenated blood from the right atrium and pumps it out to the pulmonary trunk through the pulmonary semilunar valve. Epicardium F. Smooth, innermost layer of the heart wall in direct contact with the blood being pumped. Myocardium Endocardium G. Wrinkled pouch like structure on the anterior surface of each atrium - increase the capacity of the atria Auricle H. The pointed tip of the left ventricle that rests on the diaphragm. I. Oval depression within the interatrial septum. Remnant of the foramen ovale, an opening in the septum of the fetal heart. Right atrium Pectinate muscles J. Smooth, slippery external layer of the heart wall also known as the visceral layer of the serous pericardium. K. Heart chamber that receives deoxygenated blood from three veins: the superior vena cava, inferior vena cava, and coronary sinus Fossa ovalis Tricuspid valve L. The superficial part of the pericardium made of tough, inelastic, dense irregular connective tissue. Prevents overstretching, provides protection, and anchors the heart. Right ventricle M. Muscular ridges within the anterior wall and auricle of the right atrium. N. Blood vessels that move deoxygenated blood towards the lungs. Pulmonary arteries Chordae tendineae O. Left atrioventricular valve, also known as the Mitral valve. Papillary muscles P. Blood vessels that move oxygenated blood towards the heart. Pulmonary veins Q. Receives blood from coronary veins and drains into the right atrium. Pulmonary valve R. Semilunar valve that prevents blood from moving backwards from the pulmonary trunk into the right ventricle. S. Remnant of the ductus arterioles, a temporary blood vessel between the pulmonary trunk and aorta. Left atrium Bicuspid valve T. Tendonlike, fibrous cords that connect atrioventricular valves of the heart with papillary muscles. U. Heart chamber that pumps oxygenated blood through the aortic valve to the aorta. Left ventricle V. Semilunar valve that prevents blood from moving backwards from the aorta into the left ventricle. Aortic valve W. Cone-shaped muscles that contract to tighten the chordae tendineae thus preventing the cusps from prolapse. Ligamentum arteriosum X. Heart chamber that receives oxygenated blood from 4 pulmonary veins. Coronary sinus