Premature ventricular contraction

Syncope "Syncope is defined as an abrupt, transient loss of consciousness and postural tone with spontaneous recovery, most often caused by loss of cerebral oxygenation and perfusion referred to as cerebral ischemia. Syncope is also referred to as transient loss of consciousness (Grimes, 2014)." Syncope is considered the most common medical emergency in dental offices around the world (Grimes, 2014). It can most likely occur when blood pressure is too low (hypotension) and the heart is not…

Diagram the ventricular system. Be certain to include: the lateral ventricles, the 3rd and 4th ventricles, the cerebral aqueduct, and the central canal. Describe the purpose of the ventricular system. In your answer be certain to define components of this system that are more difficult the diagram; specifically Cerebral Spinal Fluid and Arachnoid granulations. (10 points) The ventricular system is made up of ventricles in the brain which contain…

In this paper you will find information about pacemakers and defibrillators. Pacemakers and defibrillators are devices that help keep the heart in rhythm. If the heart starts to beat to slow or to fast it will send an electrical shock to get it back on pace. When you get one or both devices implanted in you will need to have regular check-up with the doctors, these should not affect your daily life. Later on in the article you read that you may be allowed to still participate in fast paced…

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 These drugs include the second-generation, non-sedating antihistamines astemizole and terfenadine, withdrawn from the market in Europe and the United States (in 1997 and 1999,…

VASOVAGAL SYNCOPE 3 Vasovagal Syncope It starts with a feeling of whirling sensation, followed by blurred vision, and a muffled sense of hearing, until one unknowingly wakes up on the floor, wondering what had happened. This type of syncope is the classic movie scene when someone receives shocking news and passes out (Team, 2015). As scary as it is, this type of fainting is quite common in the United States. Vasovagal syncope is a result of a sudden drop in heart rate and blood…

2. My interview with Mrs. Rothenaeger went really well. I was able to introduce myself and ask her a couple of the questions that I had planned for her. I first ask her generally what Ryan was like. She enjoyed talking about him and telling me about his likes and dislikes. Ryan really enjoys music and television, and Mrs. Rothenaeger said that I should try to use his enjoyment of music as an incentive to get him to perform activities that I want him to do. She also mentioned that he is not very…

Physiology relates to the functions and homeostasis in the structural organization of an organism. For an athlete it is important to keep fit because the performance is based on the condition of his or her body. Therefore, for the best performance possible, their dynamic state of equilibrium requires proper maintenance. Since in the body, various organ systems are interdependent but require cooperation of other systems to work, they are made up of organs that work together closely. These organs…

Twitch recruitment: As stimulus voltage increased contraction force increased until it plateaued at the stimulus voltage of 120 mV (Fig 1A) As stimulus voltage increased contraction force increased. (Fig 1B). Our results are consistent with the current knowledge of twitch recruitment in skeletal muscles. As the stimulus voltage increase, more motor units were activated increasing contraction force. Our results mean that that function organism’s skeletal muscles are able to recruit motor units to…

Introduction Duchenne muscular dystrophy, or DMD, is the most common and severe type of muscular dystrophy, caused by a genetic disorder that leads to progressive muscle weakness and degradation (Marieb & Hoehn, 2015). DMD is a recessive sex-linked disease and is often inherited through the mother. Because this condition is enacted by a mutation of the X chromosome, it is expressed almost exclusively in males, with one in every 3,600 males affected worldwide (Marieb & Hoehn, 2015). The DNA…

self-confidence to building muscle for impressing the ladies, little do these individuals realize how their muscle works while they pump the iron. The muscular system is the network of tissues that help controls movement throughout the body using contraction and relaxation of different muscles. This system is divided into two classes, skeletal (voluntary) and smooth (involuntary). Skeletal muscles are known as voluntary because the mind allows a person to control their movement, such as flexing…