Cardiac surgery

In class, we’ve talked about the myosin when seeing the microfilament. It is the motor protein of microfilament which moves along it tracks toward the positive end. It is also the major component of skeletal muscle thick filaments and thus, is involved in muscle contraction. The disease that is going to discuss is related to muscle contraction, called Myosin Storage Myopathy (also known as hyaline body myopathy). The characteristic or symptom of this disease is the weakness of the muscles that…

Stun is a medicinal crisis in which the organs and tissues of the body are not accepting an adequate stream of blood. This denies the organs and tissues of oxygen (which is conveyed in the blood) and permits the development of waste items. Stun can bring about genuine harm or even demise. ("Stun," 2008) Stun is normally brought about by three noteworthy classifications of issues: cardiogenic (issues related with the heart), hypovolemic (aggregate volume of blood accessible to circle is low),…

The human body is split up into several systems, which each have their own set functions (Kinworthy, 5). Every system has their own limitations of what they can do. This is due to differentiation the cells within each system become specialized for specific functions (Martini, & Bartholomew, 2). If something were to happen to one of your systems, your body’s other systems could not help because their cells do not have the ability to do what the other systems cells did (Kinworthy, 5). An example…

A growing number of non-cardiac drugs have been found to delay cardiac repolarization, causing QT interval prolongation and predisposing patients to an increased risk of potentially fatal ventricular arrhythmias, known as torsade de pointes (TdP) (Letsas et al, 2007; Yap and Camm 2003; Sanguinetti and Tristani-Firouzi). These drugs include the second-generation, non-sedating antihistamines astemizole and terfenadine, withdrawn from the market in Europe and the United States (in 1997 and 1999,…

To begin, the role of the ACH receptor is vital to biology. An incoming action potential to an alpha motor neuron causes acetylcholine or ACH, at the end plate. The ACH binds to ACH receptors on the sarcolemma causing a depolarization through sodium influx. In your body, calcium performs a number of basic functions. The body uses around 99 percent of its calcium to keep bones and teeth strong, as a result, supports skeletal structure and function. The rest of the calcium in your body plays…

muscles during exercise and is widely accepted as the the fundamental element to the Vo2 MAX (Robergs and Keteyian, 2007). The reasons behind the limiting factors of the cardiorespiratory system is believed to be due to the ability of the maximal cardiac output, pulmonary diffusion and blood volume and flow that the body can handle (Bassett,…

B – dystrophin is part of a group of a protein complex that works together to strengthen muscle fibres and protect them from injury as muscles contract and relax. Dystrophin is produced by the DMD gene and mutations cause Duchenne and Becker muscular dystrophies, which lead to reduced amounts of dystrophin in skeletal muscle cells. This reduced amount of dystrophin causes muscles to weaken and damage over time, causing the build up of fat rather than muscle. This pseudohypertrophy causes the…

The properties of cardiac muscle are always changing as a result of sympathetic and parasympathetic nervous stimulation and pharmacological drugs that alter or stimulate molecular mechanisms in the heart. In order to understand the mechanisms of the heart, we must experiment with the heart by observing the properties of cardiac cells and formulate hypotheses for their observed response. The structure of cardiac muscle consists of myocardial cells which have a nucleus, contractile filaments…

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…

will allow blood to back flow in the right atrium and this can cause the pulmonary arteries to work harder than they should. in adults the hole may close but not completetly this is called a patent foramen ovale or PFO. surgery would be needed to close larger defects. after surgery the cardiologist may restrict the child's activities for a short while but then will be abke to resume as normal. depending on how severe of the repair the cardiologist may wish to follow up…