1. List the structures and functions of the cardiovascular system. Do not forget blood and vessels are part of this system. The cardiovascular consists of the heart, blood vessels and blood. It has three functions one of them is that it transports nutrients, oxygen and hormones to cells throughout the body and removes wastes such as carbon dioxide and nitrogenous waste.
The tricuspid valve closes and prevents backflow of blood. Here it is pumped out of the chamber through the pulmonary valve into the pulmonary archery and travels to the lungs, this is the only artery to have deoxygenated blood. From there blood flow back through the pulmonary veins to the left atrium chamber (oxygenised). It travels through the bicuspid valve into the left ventricle where it is pumped through the aortic valve into the aorta. It then travels under pressure into the arteries which supply rich oxygenated blood containing nutrients, vitamins and oxygen to cells everywhere in the body.
Thus, the pericardial cavity allows the heart movement to be flexible. The pericardial cavity surrounds the heart totally except at the inlet and outlet of the cardiac vessels, where they form two significant tubes. One of the tubes serves as an interconnection to the inferior and superior vena cava and the pulmonary veins, whereas the other connects the aorta and the pulmonary trunk. Blood Supply and Innervation of the
All living beings either have a heart beat or some explaining to do. As the blood transfers the necessary nutrients throughout the body for survival, a pumping heart providing a heart beat is important1(p360). The electrocardiogram (ECG) is a way to record and monitor the electrical activity of the heart while being non-invasive1(p373). The purpose of this study is to record and examine the ECG tracings acquired when an individual partakes in low, medium, and high intensity anaerobic training. Heart rate is a measurement used in a variety of studies for a variety of reasons.
Aorta largest artery in the body, made up of three layers the intima, the media and the adventitia. It takes blood away from the heart to the organs, via the hearts muscular pumping chamber in the left ventricle. This pumps blood into the aorta through the aortic valve.
Abstract Electrocardiogram (ECG) signal has been widely used for heart diagnosis. This paper presents a VLSI based design of high speed and area efficient distributive arithmetic discrete wavelet transform (DA-DWT) for Arrhythmia Detection and its FPGA implementation. The main focus of the work is to filter and detect the QRS complex in the ECG signal and to identify the time and frequency variations. By comparing these variations with that of the variations in the normal ECG waveform one may reach to a conclusion if the patient is suffering from Arrhythmia or not. The DA-DWT is also used to filter the ECG signal so as to detect the ECG signal for Arrhythmia Detection.
The pumping action of the heart mainly causes the blood pressure in the circulation. Blood pressure is recorded as two numbers, such as 120/80. The larger number indicates the pressure in the arteries as the heart pumps out blood during each beat. This is called the systolic blood pressure. The lower number indicates the pressure as the heart relaxes before the next beat.
Our hearts serves as biological pumps responsible for pumping blood through blood vessels to body tissues. The hearts pumps blood by undergoing cycles of contraction (systole) and relaxation (diastole) in what is referred to as cardiac cycles. Each cardiac cycle, therefore, represents one heart bit. The number of heart bits per minute is referred to as the heart rate. The pumping mechanism of the heart is dependent on the pressure differences created in the chambers of the heart following the contraction and relaxation of heart muscles.
The human heart pumps blood through the arteries, which connect to smaller arterioles and then smaller capillaries. In this assignment, we will discuss the arterial blood pressure from several aspects, include definition, normal values for blood pressure, the most important factors affecting it, the mechanism involved in arterial blood pressure regulation, and the relevance between the pressure and the eye. Definition of blood pressure, it’s Normal value, and the factors that determine arterial blood pressure under physiologic conditions. Blood pressure refers to the force exerted by the blood against the inner walls of the blood vessels . This pressure produces when the heart contracts during the heartbeat cycle, which forces blood out