Controversy Surrounding The Lungs
The lungs are located in the thoracic cavity and they are protected by twelve pairs of ribs that join at the sternum. When air is breathed into the lungs oxygen penetrates the red blood cells and is carried around the body. Expiration of the lungs allows the body to emit carbon dioxide. Each individual has two lungs, the right and the left, which is divided by the mediastinum. Each lung has an apex, base, tip, costal surface and medial surface. The right lung is larger than the left as the heart takes up more area left of the midline. The lungs are split into lobes which are caused by large fissures, the right lung has three lobes and the left lung has two lobes.
Surrounding the lungs is the pleural cavity. The pleural space has two coverings, the visceral pleura and the parietal pleura. A collapsed lung is generated by air entering the pleural space.
…show more content…
The anterior and lateral walls of the trachea are made of cartilage and the posterior wall is made up of elastic ligament. The trachea is circular and is covered with columnar epithelium. The air then passes through the two main bronchi supplied to each lung and then on into the bronchioles ending up in the small alveoli which are little sacs.
Gas exchange takes place by a process called diffusion which is when the gases move from a high concentration to a low concentration. Diffusion takes place through the alveoli and the blood. The cell wall is only one cell thick so allows diffusion to take place. During inspiration the chest inflates and this is caused by the intercostals muscles and the diaphragm contracting. Expiration is exactly the opposite process as the intercostal muscles and diaphragm reclines, the chest reduces in
Al Waysmoking: A Case Study
1087 Words | 5 PagesMucus production might also increase (Porth, 2014, p. 973). The airways are ultimately obstructed, making expiratory flow difficult. 4. Why is Al’s AP chest diameter increased and how does this correspond to the PFTs?
Resistance Varies In Mike's Conducting Air
656 Words | 3 Pages1. Describe the relationship between intrapulmonary pressure, atmospheric pressure, and air flow during normal inspiration and expiration, referring to Boyle’s law. - Boyles law states that as the pressure of gas increases then the volume of gas decreases. Which is how intrapulmonary and atmospheric pressure are connected to one another. Intrapulmonary pressure is lower while undergoing inspiration and higher than atmospheric pressure during the time of expiration.
Asthmatic Episode Analysis
716 Words | 3 PagesBronchioles constrict from the increased pressure in the lungs from exhalation. Inhalation is easier because it relieves the pressure.
Fetal Pig Case Study
366 Words | 2 PagesLiver – the human liver has four lobes: right, left, caudate and quadrate. The fetal pig liver has five lobes: right lateral, right central, left central, left lateral, and caudate. Intestines – there is a significant difference in the structure of the fetal pig colon compared to the human colon. The pig colon is spiral. (See p. 45 of the FPDG.)
2.5 Respiratory System
357 Words | 2 PagesIt also helps provide oxygen to the body. External respirations is when you breathe in through your lungs and carbon dioxide exhaled out. Internal respirations is what you inhales goes from the lungs back to the heart. 4. Describe eight signs and/or symptoms of the respiratory system.
Fetal Pig Urinary System
542 Words | 3 PagesIt is also flat and full of muscle. This allows for food to digest before it enters the stomach. While dissecting the respiratory system, I continued to study the trachea, as well as the lungs and bronchi to see how their structure related to their function. . As mentioned above, the trachea is a wide and strong part of the respiratory system. The structure of the trachea is related to the function because it allows for the fetal pig to receive proper air passage through the lungs.
Acute Respiratory Distress Syndrome (ARDS)
2175 Words | 9 PagesThe exudative phase unfolds over the first 1 to 7 days after attack of lung injury. Accumulation in the alveoli of excessive fluid, protein and inflammatory cells that have move into the air spaces from the alveolar capillaries. Intrapulmonary shunt develop and blood passing cannot be oxygenated. Alveolar type I and type II cells are spoiled causing surfactant dysfunction. Alveoli become unstable and collapse and fibrotic changes take place.
How To Maintain Homeostasis
1856 Words | 8 PagesLung volume and lung capacity are two measurements of respiratory health and measured during pulmonary functions tests. It is show the physical condition of the lungs. Pulmonary ventilation, or breathing, is the process of air flowing into the lungs during inspiration (inhalation) and out of the lungs during expiration (exhalation). Air flows because of pressure differences between the atmosphere and the gases inside
Polio: Jonas Salk
1536 Words | 7 PagesAn iron lung is a tank respirator with vacuum pumps pressurized to pull air in and out of the lungs. The iron lung saved lives, but it was a terrible reminder of what polio could do to you and its effects. As you can see, polio’s effects were devastating and you can also conclude why people feared polio.
Asthma Impaired Gas Exchange
1894 Words | 8 PagesPhysiological Processes Gas exchange occurs because of the body’s involuntary response to breathe in response to: exchange carbon dioxide and oxygen, deliver oxygen to tissues and to regulate acid-base concentrations in the bloodstream. The air travels into the nose, down the trachea, bronchi, bronchioles, alveolar sacs then to the pulmonary capillaries. Froom the pulmonary capillaries hemoglobin picks up the oxygen molecules and travels through the arteries in the body to deliver the oxygen while picking up carbon dioxide and delivering it to the lungs through the veins and the process repeats. Since my patient has asthma along with a smaller diameter for air to pass through it causes severe inability to oxygenate the body during an asthma
Non Pulmonary Tuberculosis Research Paper
1646 Words | 7 PagesThe lunges are one of the most important organs in the human body, which are the major part of the respiratory system. Respiratory system is a combination of organs, which help the human to breath. Tuberculosis (TB) is a serious illness that infects the human body, especially the lungs. TB is a contagious disease that spreads among people through the air. Pulmonary TB is the first type of tuberculosis that affects the lungs or throat, and this an infection type can pass to other people.
M1 Unit 4 Seminar
685 Words | 3 PagesFrom these questions that were given out by Dr. Frander, many students should have a great understanding what to expect to the mid-term exam. Dr. Frander really encouraged us to study because most of these questions are difficult. For instance, she gave us an example in a patient who has COPD/ emphysema. What we have concluded from this question what they are looking for the emphysema patients don’t have a problem of taking air in rather they have a problem of taking the air out. The main problem of the emphysema, they have a lot of mucus, and the alveoli which where the gas exchange takes is impaired.
Ventilation Lab Report
1099 Words | 5 PagesThe walls of the alveoli actually share a membrane with the capillaries in which oxygen and carbon dioxide move freely between the respiratory system and the bloodstream. Oxygen molecules attach to red blood cells, which travel back to the heart. At the same time, the carbon dioxide molecules in the alveoli are blown out of the body with the next exhalation." (Dugdale, 2012) Ventilation is another fact because if this not happen our body will be full of carbon dioxide and the oxygen will be down. Many times when the people here ventilation they get confused and think that they are talking about respiration that is not correct, is correct say that ventilation is similar to breathing but no to respiration, they are different "Movements of the ribs, rib muscles and diaphragm allow air into and out of the lungs.
Total Lung Capacity Essay
785 Words | 4 PagesThe heart may have the sinoatrial node (SA node) to trigger contraction, but in order for us to breath our nervous system has to signal for us to begin the process of ventilation (breathing). Our brain stem has three parts to it, but only the pons and medulla oblongata play a key role in breathing. The medulla helps set the respiratory rhythm by receiving and sending impulses to a bundle of neurons called the ventral respiratory group to the phrenic nerve to bring about contraction in the diaphragm and external intercostal muscles. All this only happens though due to the sensors of the chemoreceptors. The chemoreceptors located in the medulla and carotid and aortic bodies detect a rise in carbon dioxide (CO2).
Mammalian Heart Dissection Lab Report
1584 Words | 7 PagesBIOLOGY REPORT Title: Mammalian heart dissection Name: Lambert Ntashamaje Co-worker ’s Name: Marc Koussi Date of Experiment: 13th January 2017 Words count: 1.Introduction: The aim of this experiment is to observe internal structure of a mammalian heart.
More about Controversy Surrounding The Lungs
Al Waysmoking: A Case Study
1087 Words | 5 PagesResistance Varies In Mike's Conducting Air
656 Words | 3 PagesAsthmatic Episode Analysis
716 Words | 3 PagesFetal Pig Case Study
366 Words | 2 Pages2.5 Respiratory System
357 Words | 2 PagesFetal Pig Urinary System
542 Words | 3 PagesAcute Respiratory Distress Syndrome (ARDS)
2175 Words | 9 PagesHow To Maintain Homeostasis
1856 Words | 8 PagesPolio: Jonas Salk
1536 Words | 7 PagesAsthma Impaired Gas Exchange
1894 Words | 8 PagesNon Pulmonary Tuberculosis Research Paper
1646 Words | 7 PagesM1 Unit 4 Seminar
685 Words | 3 PagesVentilation Lab Report
1099 Words | 5 PagesTotal Lung Capacity Essay
785 Words | 4 PagesMammalian Heart Dissection Lab Report
1584 Words | 7 Pages