Human lung

Pneumonia is an acute inflammation of the lung parenchyma caused by a microorganism. Pneumonia can affect one or both lungs. The infection may be caused by fungi, bacteria, Parasites, viruses and chemicals. Pneumonia produces inflammation in the lung's air sacs, also referred to as alveoli. The alveoli fill with fluid or pus, making it difficult to breathe. Pneumonia often is a complication of another condition, such as the flu. Symptoms of pneumonia can range from mild to life threatening…

such as wolves, coyotes, foxes, California gray seals, sea lions and raccoons. On rare occasions, dog heartworms will infect human beings. The parasite, Dirofilaria immitis, is spread dog to dog by mosquitoes. When a mosquito obtains a blood meal from an infected dog and then goes on to bite the owner, it is common for some of the heartworm larva to be transferred to the human. Therefore, Heartworm Disease can be considered zoonotic (Diseases passed from animals to man). In a normal person, the…

There are many diseases out there that effect the lungs, and can be life-threatening. They affect millions of people every year. Some examples would be lung cancer and acute respiratory distress syndrome. Cancer is a disease that, among other things, effects the communication between cells. Acute respiratory distress syndrome prevents oxygen from getting into the blood. With so many people being at risk, it can lead some people to wonder why the cure hasn’t already been created. There are many…

60’s research on apnea became huge and initially in the 1970’s is when they started testing research on dogs to figure out what was truly going on. At first trachaeotomies were the only means of trying to clear blockage of the throat to the lungs in dogs and humans while masks were discovered at least a decade later by Colin…

The total lung capacity refers to the maximum amount of air a person’s lungs can hold (wisegeek.org, 2014). Breathing occurs in a cyclic manner due to the movements of the chest wall and the lungs. The resulting changes in pressure, causing changes in lung volume and lung capacity (humanphysiology.hubpages.com, 2014). An average human’s lung capacity can hold 4-6 liters, but only ⅓ of your lung capacity is used during normal activity, but this fraction increases during strenuous activity when…

Regulator Gene and How it Affects Lung Functions in an Individual Sterling Wood Biology 2458 Section 005, Pankaj B.C., October 11, 2015 Introduction Many people do not realize all the different factors that are a necessity when it comes to just breathing. The air we breathe is filled with many different particles and bacteria that could cause major problems if they were to reach the alveoli. With that being said, the human body devised ways to inhibit this by the lungs secreting a sticky mucous…

compounds that are readily absorbed from the lungs following inhalation, the gastrointestinal (GI) tract following ingestion and the skin following dermal exposure (ASTDR, 1995). In humans, it was reported that B(a)P measured in the lungs following inhalation of soot particles was much lower than expected. This may be due to the ability of the pulmonary epithelial cells to metabolise B(a)P thereby facilitating its absorption and clearance from the lungs (IPCS, 1998). Occupational studies have…

Adaptation at elevated altitudes in human beings is a process of evolutionary adaptation in populations of Tibet, the Andes and Ethiopia. These people have attained the power of survival at extreme climate conditions (Beall et al., 2002). As life at high altitude is tough, this causes adaptational mechanisms among these inhabitants (Van Patot & Gassmann, 2011). While these severe conditions would have an abysmal negative effect on the health of human beings throughout the planet, the…

Idiopathic pulmonary fibrosis (IPF) – the most common form of idiopathic interstitial pneumonia – is a chronic, progressive fibrotic lung disease that affects older adults. IPF is characterized by a continuing decline in lung function, poor survival, and limited therapeutic options. The invasive proliferation of fibrous tissue and scarring of the interstitium lead to a decline in forced vital capacity (FVC) (Richeldi et al. 2014). IPF has a poor prognosis; the median survival for the disease is…

Over view of Meter dose Inhaler Regulation in US and EUROPE. Introduction A metered-dose inhaler (MDI) is a device that delivers a specific amount of medication to the lungs, in the form of a short burst of aerosolized medicine that is usually self-administered by the patient via inhalation. It is the most commonly used delivery system for treating asthma, chronic obstructive pulmonary disease (COPD) and other respiratory diseases. Metered-dose inhaler products contain therapeutically active…