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Applied Biology Essay Example

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Applied Biology

That is, the enlarged cells may not be able to contract as forcefully and as effectively as the normal-sized and normal functioning cells. This restricted function will directly hinder the heart’s ability to generate expectant force during each beat or contraction, thus limiting heart’s functioning and its’ pumping of blood for all parts of the body. In addition, the function of the electrical system of the heart, which initiates the signals for a contraction, could also get disturbed because of the changes in the structure of the heart after myocardial infraction. The disturbance will be in the form of irregular heart rhythms, which is known as arrhythmias, which is a serious and restrictive problem, and has to be treated through medication or through permanent pacemaker implantation. The structural changes could also activate “systemic processes causing sequelae in many other organs and tissues, as well as further damage to the heart.” (Davis, Davies and Lip 2007, p. Thus, these changes in the structure and the function of the heart happens in the form of a vicious cycle, leading to further deterioration of the heart, causing other serious complications, which includes total heart failure.Heart failure can be categorized and arbitrarily divided into Left-sided failure and Right-sided failure, with each exhibiting certain symptoms. However, Left sided forward failure could overlap with the right sided backward failure, and also importantly the right-sided heart failure could be caused by the left-sided heart failure. Thus, as both are interrelated, the patients could present with both sets of symptoms. Person being affected with heart failure could exhibit mainly the symptoms of shortness of breath and swelling, sometimes accompanied by nausea, vomiting, palpitations, etc. Then as a further aggravation of the condition, individuals could also lose their consciousness and also die.The left-sided failure and the resultant problems in the left ventricle and left atrium will lead to congestions in the pulmonary vasculature, which could make the patient experience respiratory problems particularly shortness of breath or dyspnea, and this is the main symptom of this category of heart failure. The patient could have dyspnea during exertion and even at rest. This key symptom of dyspnea happens due to the physiological changes that happen in the left ventricle as well as in the lungs. That is, due to heart

References

Davis, RC, Davies, MK and Lip, GYH 2007, ABC of Heart Failure, John Wiley &

Sons, London.

Faffe, DS, Faffe, DS, Chagas, PSC., Medeiros, AS., Saad, EA., Saldiva, PHN.,

Rocco, PRM and Zin, WA 1999, Pulmonary morphofunctional effects of acute

myocardial infarction, European Respiratory Journal, vol. 14, pp. 751-758.

Farrell, E 2010, What is haematuria? Website of the Edinburgh Renal Unit, viewed

on December 20, 2011

http://www.edren.co.uk/pages/edreninfo/haematuria-hematuria.php

Keir, L., Wise, BA and Krebs, C 1997, Medical assisting: administrative and clinical

competencies, Cengage Learning, London.

Kowalak, JP and Hughes, AS 2002, Handbook of signs & symptoms, Lippincott

Williams & Wilkins, London.

Fine, PL and Saint, S, “Dysuria”, In: LM. Tierney and MC Henderson 2005, The

patient history: evidence-based approach, McGraw-Hill Professional, London.

Fleisher, GR and Ludwig, S 2010, Textbook of Pediatric Emergency Medicine,

Lippincott Williams & Wilkins

Ingels, NB, Daughters, GT and Baan, J 1996, Systolic and diastolic function of the

heart, IOS Press/Lavis Marketing, Oxford.

Priscilla, L 2008, Medical Surgical Nursing, Pearson Education, London.

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preview essay on Applied Biology
  • Pages: 8 (2000 words)
  • Document Type: Essay
  • Subject: Biology
  • Level: Undergraduate
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