Hi, I need help with essay on Human physiology and Anatomy. Paper must be at least 2250 words. Please, no plagiarized work!Download file to see previous pages... This essay will also distinguish betwe

Hi, I need help with essay on Human physiology and Anatomy. Paper must be at least 2250 words. Please, no plagiarized work!

This essay will also distinguish between restrictive and obstructive respiratory diseases and outline how they are diagnosed.

Structure of the respiratory system

The respiratory system is a system consisting of various organs and tissues which have specific roles to play in the breathing process. The primary organs which facilitate the exchange of gases include the bronchial airways, the lungs, and blood vessels, as well as various accessory muscles used for breathing (Tieck, 2011). The airways are bronchial tubes where the air from the atmosphere passes on its way to the lungs. these same tubes also bring carbon dioxide out of the body (Tieck, 2011). The airways would start with nostrils followed by its associated air passages or cavities: the mouth, the larynx, bronchial tubes and its smaller branches. Air would first enter the system through the external respiratory system and enters the trachea and ends up in the lungs (Tieck, 2011). The nose contains hairs which partially filter the air from dust particles and other foreign particles. From the nose, the air flows further into the nasal cavity. The nasal cavity has epithelial tissue and blood vessels which basically moisten and warm the air entering its pathways (Tieck, 2011). Mucus is also secreted in the nasal cavity and helps clean the air from any contaminants. The nasal cavity also has cilia which eliminates the dust and other particles from the air, trapping said particles in mucus secretions, and transporting the dust into the nasal cavity and finally into the pharynx (Jango-Cohen, 2004). ...

Mucus is also secreted in the nasal cavity and helps clean the air from any contaminants. The nasal cavity also has cilia which eliminates the dust and other particles from the air, trapping said particles in mucus secretions, and transporting the dust into the nasal cavity and finally into the pharynx (Jango-Cohen, 2004). The mucus is later swallowed and then digested by the stomach acids. The air continues its travel down into the pharynx and the larynx. In order to prevent food and drink from getting into the air passages, the epiglottis acts as a sphincter which shuts the windpipe close when one swallows (Jango-Cohen, 2004). As soon as the air is carried into the lungs by bronchial tubes, the process of air exchange is already taking place. The lungs and the blood vessels which surround the air sacs are the primary organs which assist in exchange of air (Jango-Cohen, 2004). The lungs are found at the in the inner chest cavity (Jango-Cohen, 2004). For the lungs, the main bronchi split into smaller tubes or bronchioles (Jakab, 2007). These bronchioles continue to branch out and culminate in the air sacs or alveoli. These alveoli are covered with small blood vessels or capillaries which include various arteries and veins which eventually supply oxygen to the different parts of the body (Jango-Cohen, 2004). Through the pulmonary artery carbon dioxide in the blood is delivered to the capillaries around the air sacs (Jakab, 2007). Carbon dioxide and oxygen exchange occurs in these capillaries and carbon dioxide is transported from the blood out into the air during the exhalation process. In exchange, oxygen is pulled into the lungs and is transported to the blood (Jakab, 2007).