Ventricle

the rate and rhythm of the heartbeat. The atrioventricular node slows the electrical signal before it enters the ventricles. It is located in the center of the heart between the atria and the ventricles. What the slowing down of the electrical impulses does is to give the atria time to contract before the ventricles do. Impulses are then sent to the muscular walls of the ventricles be a pathway of fibre known as the His-Purkinje…

The two upper chambers are called the atria and the two lower chambers are ventricles. The atria are smaller and have thinner, less muscular walls than the ventricles and are the receiving chambers. Blood enters through veins that open into the atria and leaves from arteries which come from the ventricles. Each chamber is named based on it’s location so there are right and left atria and right and left ventricles. The walls of the chambers are made up of cardiac muscle tissue or myocardium.…

2.1. The left ventricle and interventricular septum The heart has two inferior chambers, called the right and left ventricles, respectively. These chambers are the “pumps” that expel blood into the blood vessels and keeps it flowing through the body (Rizzo, 2016). The left ventricle is a cavity that has thick muscular walls that contains the papillary muscles as well as the chordae tendinae that attaches the atrio-ventricular valve leaflets to the papillary muscles (Leeson, Augustine,…

lungs for oxygenation which can then be pumped into the various arteries. The transported blood therefore transports oxygen, hormones and nutrients to body tissues. The four chambers in the heart are known as the right atrium, left atrium, right ventricle…

oxygenated blood to the body. Pulmonary veins carry oxygenated blood from the lungs into the heart. Left atrium is one of the left upper chambers that takes oxygenated blood from the lungs and pumps it into the left ventricle which carries it to the body (MedicineNet, 2016). Left ventricle is one of the left lower chambers that takes blood from the left atrium and pumps it through the aorta to the rest of the body (MedicineNet,…

is between the right atria and right ventricle. Therefore, you would auscultate the tricuspid valve on the left side of the heart, between the fourth and fifth rib (or intercostal space) and lower left sternum area. The mitral valve is between the left atrium and left ventricle. Therefore, you would auscultate the mitral valve on the right side of the heart, between the fifth and sixth rib (or intercostal space). The pulmonary valve is between the right ventricle and pulmonary artery. Therefore,…

one of your hearts two lower pumping chambers (ventricles). These heartbeats disturb your normal heart rhythm which causes your heart rate to increase. supraventricular arrhythmias – is a fast heartbeat that begins at the atrium or atrioventricular (is a group of cells located between the ventricles and atrium) right and left ventricles and develops when the normal electrical pulses of the heart are disrupted.…

Explain the significance of the thickness of the left ventricular wall. The right ventricle wall is small and thin containing deoxygenated blood. The left is just the opposite. The left ventricle is larger and thicker making it stronger than the right, but containing oxygenated blood. However, since it is pumping blood all around the body, it is at a more forceful rate (Oxford Journals, 2016). The major coronary vessels are on the surface of the heart. What is the advantage of that location?…

small cardiac vein which runs along the same path as the right marginal artery, receives deoxygenated blood from the anterior/lateral aspect of the right ventricle while the middle cardiac vein runs parallel with the posterior interventricular artery and receives deoxygenated blood from the posterior aspect of both the left and right ventricles as well as the posterior aspect of the interventricular septum (Cummings, 2013). Concerning the great cardiac vein which accompanies the anterior…

Heart is a muscular organ located in the thoracic cavity; it is responsible for pumping the blood to rest of the body through the circulatory system.1 It is composed of four chambers: left & right atrium and ventricle, these two chambers are separated by valves(atrioventricular), whereas the left and right side of heart is separated by interventricular septum.1 Walls of heart are composed of cardiac myocytes, these cells contain myofilaments, each unit is composed of contractile protein called…