Larynx

Your Lungs or Mines There are many reasons why individuals choose to smoke. Most smokers start from a young age trying to fit in with the crowd, trying to look older, or probably just experimenting. As these individuals get older they try and deal with stress of every day life by smoking. It makes them feel more relaxed and at ease. Whatever the reason is, it is a hard habit to break once one starts. For many smokers today it is getting hard to find a place to smoke. I hear many…

1. Anatomy of the trachea and bronchi. The trachea (Fig.1) is a cartilaginous and membranous tube, extending from the lower part of the larynx, on a level with the sixth cervical vertebra, to the upper border of the fifth thoracic vertebra, where it divides into two main bronchi, one for each lung. The trachea is nearly but not quite cylindrical, being flattened posteriorly; it measures about 11 cm. in length; its diameter, from side to side, is from 2 to 2.5 cm., being always greater in…

The small intestine consists of three divisions: The duodenum is the uppermost division and the part to which the pyloric end of the stomach attaches. it is about 25 cm (10 inches) long and is shaped roughly like the letter C. The name duodenum , meaning " 12 fingerbreadths," refers to the short length of this intestinal division. The duodenum becomes jejunum at the point where the tube turns abruptly forward and downward . The jejunal portion continues for approximately the next 2.5 m (8…

The human body has many systems that work together to help us stay alive and function. Body systems are the group of functions that work together for a common purpose. Any malfunction or delay from any of these systems can affect the whole system. There are eleven body systems in all. These include the integumentary, cardiovascular, lymphatic, digestive, respiratory, urinary, skeletal, muscular, nervous, endocrine, and reproductive system. Each of these systems are made up of organs with…

The enzymes in the stomach break down food as well as kill bacteria. What cells in the stomach function to form enzymes and acids? Parietal cells in the stomach create hydrochloric acid and pepsin which digests proteins. Why doesn’t gastric juice digest the inside of the stomach? The stomach mucosa that lines the stomach is able to resist the juices of the stomach acid. What are sphincters and how are they related to the stomach? The first is the cardiac sphincter located at the top of…

The phonotory system has mostly cartilage except for the hyoid bone. As air is passing through the larynx and the laryngeal membranes, the vocal folds are abducted resulting in medial compression at the midline so air cannot escape. The thyoarytenoid makes up the majority of the vocal folds. The stylohyoid contraction at mandible will draw the hyoid up…

Swallowing, which is also known as “deglutition” is the process of transporting a bolus (chewed food) from the mouth, down the esophagus, into the stomach. Deglutition consists of three distinct phases with various neural involvements. For some individuals, the inferior esophageal sphincter can malfunction resulting in gastroesophageal reflux disease (often shortened to GERD). Commonly known as “heartburn,” GERD can affect deglutition as well as a person’s quality of life. GERD can be…

because smoking damages your blood cells and may cause blood clots and bleeding. If this happens in your brain, it can lead to the sudden death of brain cells. C . It can cause cancers of the mouth, nose, throat, larynx, trachea and esophagus. 3. Smoking is toxic to your lungs. A. If you have asthma, smoking can trigger attacks or make your asthma more severe.…

The respiratory system is a vital factor of gas exchange due to its structure. The structure provides an efficiency to the process due gas exchange requiring an efficient system. Gas exchange requires an efficient system because it is a process through which blood circulates around the body, collects oxygen, delivers the oxygen to the organs that require it and releases carbon dioxide. Oxygen enters the body, and carbon dioxide exits the body in opposite the direction. Gas exchange occurs across…

Addiction has many faces, cigarettes being the most notorious. In all honesty, cigarettes damage lungs. By the same token, cigarettes give people cancer. Even worse, is the high price of cigarettes. They contain a nasty chemical, and that chemical is called nicotine. On top of all of that, cigarettes weaken a human 's immune system. Cigarettes are dangerous to any and all users. As if a person did not already know, smoking destroys your lungs like an atomic bomb. Smoking can cause the body’s…