Cardiac cycle

Muscles are often only described by large features and classified by a particular region of group of muscles, which does not do the complexity muscle tissue justice. When a skeletal muscle cell is broken down on a microscopic level one is able to truly grasp just how intricate skeletal muscles are along with how they function on a physiological level. Skeletal muscle cells cannot be understood until three key aspects of their structure are enumerated and these are their myofibrils, sarcoplasmic…

compromised of four chambers including a right and left atrium and corresponding ventricles. the function of the heart is to pump oxygen rich blood throughout the body while receiving blood and sending it to the lungs to be re oxygenated then repeating the cycle. all of the body's different tissues require this oxygen rich blood to perform their functions. however, there are many problems that can affect the function of the heart. some of these problems are congenital meaning present at birth.…

Purpose: Recent research indicates that the skeletal muscles of the human body do not function as independent actuators. Instead, they seem to be linked by connective tissue forming myofascial chains. While the existence of such meridians has been demonstrated for the ventral and the dorsal side of the body, no data are available for morphological fusion of lateral muscles. This study aimed to provide evidence for the inferior part of the lateral myofascial chain. Methods: Fourteen legs (7…

Cardiopulmonary Resuscitation (CPR) is a lifesaving method that is used daily in many emergencies that involve trouble with the heart or breathing. This technique allows you to restore flow of oxygenated blood to a person’s brain and heart, and restore breathing in the person when the heart is stopped. When the heart stops, blood flow to the brain and organs stops which causes damage to these necessary body parts. Without help, the person could die within eight to ten minutes. Therefore, knowing…

Who is the Real Winner? The question of whether athletes are born or made has become the leading topic of athletic debate in the recent decade. Were esteemed athletes such as Michael Phelps, Usain Bolt, Lionel Messi, and Rory McIlroy born with gifted talent, or were they made elite athletes through hard work and the right nurturing?. Through the development of the human genome and the increasing research into genetics, many scientists and athletes have wondered if nature or nurture has more of…

is very little, but during activity, oxygen consumption is multiples due to the intense oxygen demands of the muscles. Other parameters that are expected to change during exercise are metabolic rate, heart rate and blood pressure, stroke volume, cardiac output, and total peripheral resistance. The energy required to maintain the bodily functions comes from the food that we eat- carbohydrates, fats, and proteins. Metabolism or metabolic rate describes all the chemical changes that occur within…

“So you think, so you become.” When ignorance, and poverty struck a whole nation, and the elite makes a call to god… “Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity.” ― Martin Luther King Jr. Many have witnessed or heard about act of terrors in Haiti on the name of “Zombification,” causing by a group of undercover criminals. It is by itself a broad topic full of stupidity, but this idea is important to introduce what I want to tackle today.…

Every year, thousands of people, mostly young children, are affected by the neuromuscular disease Muscular Dystrophy. There are many different types of Muscular Dystrophy and they differ based on which muscles are affected and what the causative protein in the body is. Muscular Dystrophy was first introduced to us in 1830 by Sir Charles Bell, who wrote of an illness that caused a great amount of weakness in young boys. Years later, a French neurologist by the name of Guillaume Duchenne…

Worth the Risk? Performance Enhancing Drugs (PEDs) are substances used to improve any form of performance in humans and boost self-confidence. Athletes and bodybuilders take PEDs. Military personnel use them to enhance combat performance. PEDs came along in the beginning of the Olympics Games (776-393 BC) because athletes were concentrated on winning. Many athletes wanted the edge over their rivals and wanted to make sure their performance was going to be the best it could be. A growing…

implementing the overall policies, procedures, and services of the cardiac catheterization lab. A cardiac cath lab director ensures efficient and effective lab operations, including quality control and compliance adherence. The director must be familiar with a variety of the field 's concepts, practices, and procedures and relies on extensive experience and judgment to plan and accomplish goals. Leads and directs the work of others ("Cardiac Catheter Director Roles," 2016, p. 5). To obtain…