This website uses cookies to ensure you have the best experience. Learn more

Respiratory Function / Dysfunction Essay

2244 words - 9 pages

Respiratory Function / DysfunctionThis paper will describe the structure and function of the lungs. It will also explain the effect of asthma on the lungs, and outline the consequences of a dysfunction of the respiratory system. The main treatment for asthma shall be explained, alongside a range of treatment responses in minimizing this dysfunction. Measures on how asthma attacks can be prevented and the lifestyle factors associated with the maintenance of a healthy functioning system shall also be discussed.The respiratory system is made up of the lungs, and the system of air tubes that carry oxygen (air) to and from the lungs, the respiratory system is separated into two major parts, the upper airway and the lower airway. The upper airway works to move air to the lower airway. The upper airway consists of the nasal cavity (nose), air is drawn through the nostrils into the body, where it is warmed and moistened. The walls of the nasal cavity have a carpet of tiny hair-like bristles called Cilia, that sweep debris and mucus upward, so that it is swallowed or coughed out. Other cells, called Goblet cells, line the airways and secrete sticky mucus to trap dust or other particles. The consistent sweeping motion of the cilia filter out debris so when oxygen finally reaches the tiny alveoli, in the lungs, it is clean. The nasal passages are also responsible for the sense of smell.After the nasal passages, the air travels through the pharynx (throat) then on to pass through the larynx (voice box). The larynx runs directly into the trachea (windpipe) and is the connection between the upper airway and the lower airway (Figure1). There are C-shaped cartilage rings that surround these airways, which hold the trachea permanently open, causing them to expand when breathing in and relax when breathing out. They also prevent the trachea from being blocked by "kinks" each time the neck moves, the rings are only present to the point where the bronchus enters the lungs. The lower airway is known as the bronchial tree, it is a four-inch air-passage that divides at its lower end into two branches the Bronchi, one leading to each lung. The bronchial tubes are the airways that spread through the lungs like the branches of a tree. The airways branch into smaller and smaller airways, these are known as the bronchioles.Figure1.Respiratory System.The right bronchial tube is the airway passage to the right lung, which has three main lobes. The left main bronchial tube is the airway passage to the left lung, which has two main lobes, these resemble a sponge/rubber texture. At the end of these airway passages in the lungs, are the alveoli. Alveoli are bunches of air-sacs (that resemble clusters of grapes) each is surrounded by small blood vessels, called capillaries. The walls of the alveoli are very elastic (like balloons) they have the ability to stretch and contract as air enters and leaves the lung. There are an estimated 300 million alveoli, inside one set of human...

Find Another Essay On Respiratory Function / Dysfunction

Similarities and Differences Amongst Multiple Sclerosis and Muscular Dystrophy

1790 words - 8 pages Signs and Symptoms Multiple Sclerosis is a central nervous system disorder that is characterized with multiple different signs and symptoms. These signs are based on the different courses of neurological damage throughout the central nervous system that can vary in strength and location. Patients will typically present with spasticity, fatigue, sexual dysfunction, bladder dysfunction, pain and cognitive function. Other symptoms that are less


2215 words - 9 pages Exercising is beneficial for health and for longer life. Physical inactivity is considered to be the fourth most common cause of deaths, approximately 3.2 million deaths annually (Giles & Koehle, 2014). Regular exercise decreases the risk of developing cardiovascular diseases, diabetes, cancer, respiratory function and stroke. Many of the least expensive form of exercise such as walking, running, cycling are performed in an outdoor setting, in

RSV Is the Leading VIral Agent Respiratory Tract Disease Worldwide

1436 words - 6 pages Epidemiology: RSV plays a major role in respiratory infection among the childhood population, especially infants and younger children. It is the leading viral agent respiratory tract disease worldwide, causing bronchiolitis and pneumonia in infants and young children. There are about 100,000 cases and 4,500 deaths yearly of RSV infections in the United States (1). Typically, all children are infected with RSV by age 2 to 3; however, the

Understanding Mitochondrial Disease

1426 words - 6 pages function with compensatory mitochondrial proliferation.” The electron microscopy of the biopsy could present irregularly enlarged mitochondria, in addition to unusual cristae. In respiratory chain enzymology “the activities of the enzyme complexes involved in making adenosine triphosphate are measured and expressed relative to citrate synthase.” In the end, actual examination of the DNA and mitochondrial DNA may be necessary to confirm or deny any


2432 words - 10 pages viral entry.12 Clinical features MERS-CoV infection is characterized by a severe acute hypoxemic respiratory failure and an extrapulmonary organ dysfunction, which in turn can cause even death. However, important details as the clinical course of the disease and the spectrum are still not fully understood.13 HCoVs have been largely associated with common colds but with the advent of SARS-CoV and MERS-CoV they started being investigated in any


1715 words - 7 pages , extra cellular matrix protein production and apoptosis. Importantly, several studies have shown that both oxidative mitochondrial DNA (mtDNA) mutations and progressive respiratory chain dysfunction are associated with atherosclerosis or cardiomypathy in human investigations and animal models of oxidative stress. This accumulation evidence suggests that mitochondria play a significant role in the regulation of cardiovascular cell function. In

Journal Article Review

988 words - 4 pages found that a large percentage of young women were unable to perform a PF muscle contraction on demand, during coughing, or at the beginning of forced expiration.2 In healthy, young women, a multidimensional training program, including both PF muscle strengthening and abdominal muscle co-contraction with the PF muscles during forced expiration and coughing, significantly improved PF muscle function. These findings support the use of forced

Flaccid Dysarthria

2038 words - 9 pages infarction. Five months of intervention was implemented to instruct the subject on glossopharyngeal breathing as a strengthening method. Outcomes of intervention were measured for both respiratory function and speech production. For respiratory function, vital capacity was measured through spirometry. Additional assessments were implemented to measure maximum phonation time, number of words produced per breath, as well as syllables per breath

Guillain-Barre Syndrome Descrption

2318 words - 9 pages What is myelin sheath? A typical nerve consists of dendrites, axons, a cell body, terminal buttons and myelin sheaths. Dendrites gather information from the environment and the stimulus is gathered in the cell body. The axons of a nerve function to carry nerve impulses from the body to another nerve. Spaces in between myelin sheaths in axons, where electrical impulses travel, are called Nodes of Ranvier. The myelin sheath, also called

Detection and Treatment of Patients with Severe Sepsis

2519 words - 10 pages cause) (Sagy, Al-Qaqaa, & Kim, 2013). Pro-inflammatory mediators also activate the complement system, which results in increased inflammation and upregulation of specific receptors that lead to cellular injury and apoptosis seen in severe sepsis and organ dysfunction (Ward, 2008). Organ dysfunction can occur in one or more organs such as the lungs, liver, kidneys and or heart and often results from a lack of perfusion. If unresolved, this leads

Pathophysiology of COPD

3719 words - 15 pages cough and excessive sputum production. By looking through John's notes it was discovered this was an exacerbation of COPD.To understand John's condition it is useful to look at how the normal respiratory system works. The function of the respiratory System is to supply the body with oxygen and remove carbon dioxide (Marieb, 2004). According to Waugh and Grant (2004) it also helps maintain body temperature and eliminate excess water from the body

Similar Essays

Spirometry And Physical Fitness Test Essay

547 words - 2 pages Introduction:Spirometry is the classic pulmonary function test, which measures the volume of air inspired or expired as a function of time. It can monitor quiet breathing and thereby measure tidal volume, and also trace deep inspirations and expirations to give information about vital capacity. Spirometrymay also be used to measure forced expiration rates and volumes and to compute FEV1/FVC ratios. Spirometry provides an objective measurement of

Spinal Cord Injury Essay

1315 words - 5 pages . Nearly half of the spinal cord injuries are the result of motor vehicle accidents. Other major causes include falls, violence and sports accidents. Acts of violence remain the primary cause of spinal column among some minority populations. Injury to spinal cord could result to bowel and bladder dysfunction, sexual dysfunction, autonomic hyperreflexia, respiratory and cardiac problems and pain. In addition, the person with spinal cord injury could

The Continuing Mystery Of Sids Essay

3191 words - 13 pages abnormalities found within these infants prior to death. The list of proposed chronic abnormalities is lengthy. To this date, research has confirmed the following: 1) SIDS is due to a dysfunction of the cardiac and/or respiratory systems, and 2) the death of the infant is due to hypo-ventilation of the lungs and periods of complete cessation of breathing or apnea. Hypo-ventilation and apnea cause hypo-perfusion of the tissues with necessary oxygen

How Obesity Affects Lung Function And Health

2746 words - 11 pages had initiated questions that the researcher was unable to find the answer to. 6. Respiratory system and obesity 6.1 Structure and Function The respiratory system is a set of organs and tissues facilitating an individual to breathe. The respiratory system is made up of upper respiratory tract and lower respiratory tract. The upper tract is the beginning section and that includes the nose and mouth. The lower tract includes the trachea