Cardiac electrophysiology

Bradyarrhythmias - occurs when the heart rate is slower than normal (lower than 60 bpm) . if the heartrate is too slow not enough blood reaches the brain (this can cause you to pass out). Bradyarrhythmias is due to the flawed cardiac conduction system (group of cardiac muscle cells in the walls of the heart that send signals to the heart causing it to contract) at the level of the atrium or atrioventricular. A heartbeat that is too fast is called tachycardia. A heartbeat that is too slow is…

The heart is one of the major organs in the body that is essential. The heart is considered a pump that helps the blood flow, continuously, throughout the body. The heart is located under the rib cage, between the lungs, and more on the left side of the breastbone. It has two major coronary arteries, electrical impulses, four chambers, and four valves to help the blood flow one way. Deoxygenated blood enters the right atrium from the superior and inferior vena cava. When the right atrium…

Blood Pressure: Systolic and Diastolic Abstract Blood pressure is when your heart beats and so it pumps blood back up to your body for it to have energy and oxygen. However, as your blood pushes it creates strength, so this creates blood pressure. Pulse is to see the rate of your heart going beats per minute. In this experiment, we gather data to see if the level of physical activity could affect the result of the systolic and diastolic measures in blood pressure and if the pulse would also be…

Supraventricular Tachycardia, Adult Supraventricular tachycardia (SVT) is a kind of abnormal heartbeat. It makes the heart beat very fast and then beat at a normal speed. A normal heart beats 60 to 100 times a minute. This condition can make your heart beat more than 150 times a minute. Episodes of a fast heartbeat can be scary but they are usually not dangerous. They can lead to problems if: They happen often. They last a long time. Symptoms of this condition include: A…

how to administer the possibly life saving measure. All high schools should require a cpr course to be taking in order to graduate because Cpr saves lives, most cardiac arrest situations occur at home, and so they should be able to tell the difference between cardiac arrest and a heart attack. About 900 americans die everyday due to cardiac arrest According to the new york times. when you know how to perform Cpr you might be saving a relative's life, loved ones, or even a stranger. One of the…

Muscle cells play a very important role in movement of our body. There are three types of muscle cells in vertebrates: skeletal, cardiac and smooth. We are mainly going to be concerned with skeletal muscle for this particular experiment. The skeletal muscle is responsible for the voluntary movement of whole body or body parts, manipulation of external objects, support for our skeleton (Sherwood, 2010, p257). Skeletal muscles have a striated structures of alternating light and dark bands…

muscular protein called dystrophin. Dystrophin is a skeletal muscle protein. This protein is known for keeping the muscle cells intact. With the defect in the protein, it causes rapid muscular deterioration. This protein is also found in the cardiac muscles and the brain. The dystrophin gene is located on chromosome X on the short arm. It contains more than 3685 amino acids. While it only accounts for a little of the proteins, its effects are very important. Duchenne and Becker the cells…

Exercise effects the human body in many fascinating ways; as it causes the body to adapt and alter to aid the body’s stimulation. Take when carrying out the Harvard step test practical. This test is where a person carries out a period of exercise for a certain length of time and then records their heart rate before and for so long after the period. This shows how fit and healthy the heart is by showing how long it takes for the heart to go back to a regular resting pulse rate. “The…

Introduction: The heart rate of an animal can be used as an indicator to identify when a stimulus evokes a reaction from the animal. Specifically in the case of humans’, there tends to be the cognitive ability to physically withhold a reaction from a stimulus and mask the involuntary reaction. However, the heart rate reacts immediately after a stimulus, and is not reigned in or controlled cognitively, so could the heart potentially be a true indicator of an individuals reaction to a stimulus?…

Duchenne’s muscular dystrophy Duchenne’s Muscular Dystrophy Zachary Uecker Genetic Disease Abstract Duchenne’s muscular dystrophy is a genetic disease that targets skeletal muscles and over time, the muscles lose protein and are replaced by fats and connective tissue, making the skeletal muscles unusable. In this paper, the parts of Duchenne’s that will be covered are the method of transmission, statistics about Duchenne’s in the population, the pathophysiology, the body systems…