Asthma Essay

2197 Words9 Pages
Assignment theme - Respiratory System


Question: What is Asthma and how does it affect the human lungs?

Aim: The aim of this assignment will be to research the basic structure and function of Human Lungs and the respiratory condition known as asthma, and how its effects on the human lungs, looking at the causes and treatments used to prevent and treat the illness.

Literature Review

The human lungs are a pair of large, sponge like organs that are optimised for gas exchange between the blood and oxygen. The human body requires oxygen in order to survive and function. The lungs are responsible for providing vital oxygen while also removing the carbon dioxide before hazardous levels are reached within the body.
The pleura are double-layered serous membranes that surround the lungs. The parietal pleura form an outer layer of the membrane and the visceral pleura forms the inner layer which covers the outside surface area of the lungs. Between the parietal and visceral pleura is the pleural cavity, this creates a space that enables the lungs to expand during inhalation.
Here is where serous fluid is secreted by the pleural membranes lubricating the inside of the pleural cavity therefore stopping possible irritation to the lungs during respiration. The lung is shaped like a cone-shaped, the superior end of the lung that forms the point and the inferior end at the base. The apex is found at the superior end of the lungs. And the inferior end known as the base rests on the diaphragm. The base of the lungs is concave which follows the contour of the diaphragm.
As the heart is located on the left hand side of the body the left lung is slightly smaller the left lung contains an indentation, known as the cardiac notch...

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...pecific leukotriene receptors on bronchial tissues, therefore preventing bronchoconstriction, mucus secretion, and oedema. These treatments also reduce the influx of eosinophils, which results the ability to limit inflammatory damage being caused in the airway. These oral, non-steroidal, anti-inflammatory drugs reduce the incidence of acute asthma attacks when taken on a regularly basis. Although in cases of acute asthmatic attacks medical intervention and treatment is required. The type of intervention depends on the severity of the attack itself.

In conclusion there are holistic elements that can be used to help with the condition along with medical and preventative treatments asthma is a genetic incurable ongoing illness on the human lungs and even though it is reactive to environmental factors that causes inflammation that results in an asthmatic reaction.

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