The Cardiovascular System (Known as circulatory system) is an important system within the human body which functions with specific organs such as the heart, blood vessels – including capillaries, veins, and arteries along with small blood vessels, and blood. The cardiovascular system works by your inhaling process. As you inhale, the air goes towards your lungs. Since the air contains oxygen, your blood stream absorbs this through your lungs. The heart forces the ‘oxygenated’ blood through a range of connecting blood vessels specifically speaking arteries which travel around your body providing your cells with the necessary materials that the blood contains.
Describe the function of the heart, cardiac cycle and circulatory system Function of the heart The heart is a muscular organ that pumps and circulates blood throughout the body via a transport system of arteries and veins and capillaries. As the blood circulates throughout the body it supplies oxygen and nutrients to the tissues as well as removing carbon dioxide and harmful waste products (Tucker, 2015). The structure of arteries Arteries have thick muscular walls and a small lumen passage. According to L. Tucker they are constructed with three layers: • A fibrous outer layer • A middle layer of muscle and elastic tissue • A lining made of squamous epithelial tissue The epithelial lining has a smooth surface to reduce friction and
Perfusion : Perfusion is the process of a body delivering blood to a capillary bed in itsbiological tissue. The word is derived from the French verb "perfuser" meaning to "pour over or through". Tests verifying that adequate perfusion exists are a part of a patient's assessment process that are performed by medical or emergency personnel. The most common methods include evaluating a body's skin color, temperature, condition and capillary refill. Perfusionists employ artificial blood pumps to propel open-heart surgery patients' blood through their body tissue, replacing the function of the heart while the cardiac surgeon operates.
NATOMY AND PHYSIOLOGY In this assignment the author will describe the functions and structure of the main systems of the body and their interrelationship. 1. Explain the Function of the Heart and the structure of the Arteries, Capillaries and Veins: Function of the Heart: The heart is a muscular organ in humans which pumps blood through the bold vessels of the circulatory system. Blood provides the body with oxygen and nutrients and also assists in the removal of waste. The heart is a pump that drives the whole circulatory system.
The process of ventilation provides air into the alveoli of the lungs. This is where gas exchange occurs. Gases diffuse across the membrane between the alveoli and the capillaries into the bloodstream according to Fick’s law: the rate of diffusion of a gas tissue is proportional to the tissue area, difference in partial pressure and is inversely proportional to the thickness , i.e. oxygen passes into the blood from alveoli and carbon dioxide exits the blood into the alveoli. The atmosphere consists of oxygen, nitrogen and carbon dioxide as well as other gases.
Most of the blood flow across to the left atrium through the foramen ovale. Then blood moves down into the left ventricle. It is then pumped into the ascending aorta. From the aorta, the oxygen-rich blood is sent to the brain, to the heart muscle, and to the lower body. Blood returning to the heart from the fetal body contains carbon dioxide and waste products as it enters the right atrium.
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.
 Explaination: The harder the heart works to push the blood ,the greater the force is on the arteries Blood pressure is expressed in terms of millimeter of mercury above the surrounding atmospheric pressure.Blood pressure readings have two numbers i.e top number and bottom number.The top number is called Systolic pressure.The bottom number is called Diastolic pressure.The blood flows through arteries and it delivers all necessary oxygen and nutrients the body needs to be healthy. Such a force occurs throughout the vascular system.  Systemic arterial blood pressure is most commonly called as blood pressure.However,measurement of pressures in the pulmonary vessels and venous system plays an important role in intensive care medicine.Blood pressure is influenced by the heart rate ,the amount of blood pumped by the heart and the ease with which blood travels through the body.The difference between the measured systolic and diastolic pressures is called pulse pressure.
The endocrine system is such an important system to the body because it functions the bodies use of hormones. The body uses many different hormones and the endocrine system regulates these. When the glands of the endocrine system secrete the hormones, the hormones are put into the bloodstream to be sent to the different parts of the body. The glands that comprise the endocrine system are the hypothalamus, the pituitary gland, and the pineal gland which are all located in the brain, the thyroid, parathyroid, and thymus which are located in the throat, the adrenals and pancreas which are located in the body’s midsection, and the ovaries (female) and testes (male) which are located in the pelvic region. The system is so important because it regulates the body’s metabolism, growth and sexual development, digestion, heart rate, and many of the other body functions regulated by hormones.
CARDDIOVASCULAR SYSTEM DEEP VEIN THROMBOSIS Anatomy and physiology Vein is an elastic blood vessel that transports blood from all part of the body to the heart. Vein have four main types, which is pulmonary, systemic, superficial and deep vein. Deep vein located deep within muscle tissue and typically located near the corresponding artery with a same name. Deep vein thrombosis Deep vein thrombosis (DVT) is pathology of cardiovascular system. It happens when the blood clotting in a deep vein of the blood vessel are clumps together and become thick.
•Then travels to the bachmann’s bundle and the internodal pathways... •The internodal pathways then join together at the atrioventricular node... •As the bundle of his goes down the septum (the wall that divides the two sides of the heart) • it splits into the left and right bundle branch... •Which then produces the terminal purkinje fibres which travel up to the left and right ventricles (lower chamber of the heart) Structure of the heart The heart is basically a muscular, strong pumping organ that is located on the body’s midline in the chest area. The apex (located at the bottom tip of the heart) is turned more to the left so around 23 of the heart is found on the body’s left side, whilst 13 is on the right side. The heart’s base (the top of the heart) connects to the blood vessels (the aorta, vena cava, pulmonary trunk and pulmonary veins) of the body. The heart also has four chambers. The two atria (that are located either side of the heart) collect the blood and the two ventricles (also located either side of the heart) pump the blood out of the heart.
The liver has a portal vein as well as a hepatic vein. It also has unique exchange blood vessels similar to capillaries, called “sinusoids.” How do these unique structures determine the function of the organ? • The livers main function is to filter and process the blood it receives. The portal vein and hepatic vein then deliver the nutrient rich blood to the capillaries (sinusoids). The blood seeps in the sinusoids on its way to the hepatic veins, and then to the vena cava.
To determine if the Renin-Angiotensin-Aldosterone system is the ultimate controlling system in terms of why and how it functions. Definition of the topic: The Renin-Angiotensin-Aldosterone system is being evaluated to determine if it is the ultimate controlling system. Composed of various components such as the renal, liver, adrenal gland and cardiac system. This system interlinks all its components to carry out its function. To determine the functions of the three hormones; renin, angiotensin and how they perform the role of regulating blood volume and sodium balance Body Function: The Renin-Angiotensin- Aldosterone system functions in the regulation of sodium for optimal balance.
Transposition of the Great Arteries, Pediatric A good way to understand this condition is to first think about how blood flows in the body. Arteries are blood vessels that carry blood away from the heart to other places in the body. The two largest of these arteries are called the great arteries. One of them, the pulmonary artery, takes blood from the heart to the lungs. In the lungs, oxygen is added to the blood.
Calcium control is important because it lets the normal conduction of electric currents to run in our nerves and is also, the main element that causes our muscles to contract. The muscles contract when the brain signals and the body will pull calcium from the blood into the muscle cells. The calcium will then bind with the troponin, a complex of three regulatory proteins important to muscle contraction, which then draws it