Oxygen is inhaled into the alveoli and is passed into the capillaries, while carbon dioxide is passed from the capillaries into the alveoli to be exhaled. The second phase is called internal respiration where gas exchange takes place in the cells. Oxygen is passed through the bloodstream into the tissues and back into the bloodstream to reach the lungs. It also works with the circulatory system to move blood and oxygen throughout the body. By working with the circulatory system, it ensures that our body receives the right amount of oxygen and nutrients it needs to survive and maintain the proper functioning of our body. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an Original Essay The major organs that make up the respiratory system are made up of three main parts: the airways, the lungs, and the respiratory muscles. Within these three main parts are organs that help and pave the way for a healthy respiratory system. The airways, which include the nose (nasal cavity), mouth (oral cavity), pharynx, larynx, trachea, bronchi, and bronchioles, carry air between the lungs and the outside of the body. The lungs which act as functional units of the respiratory system by passing oxygen into the body and carbon dioxide out of the body. The third major part is made up of the respiratory muscles, including the diaphragm, which act like a pump, pushing air in and out of the lungs as you breathe. The nose (nasal) is a facial structure made up of cartilage, bone, muscles and skin that supports and protects the front of the nasal cavity. The nasal cavity is a hollow space inside the nose and skull lined with hair and mucous membrane. The function of the nasal cavity is to warm, hydrate and filter the air entering the body before it reaches the lungs. The air that leaves the body through the nose also returns moisture and heat to the nasal cavity. Although the nose is the main organ that allows the inhalation of air, it is not the only one. The body has another source to allow air to enter the body. The name of origin is the oral cavity also known as the mouth, the secondary opening of our respiratory system. The oral cavity plays an important role in our respiratory system. It is a reserve entrance for air, if necessary, whenever nasal functions are reduced. Because the path of air entering the body from the mouth is shorter than the path of air entering the nose, the mouth does not warm or hydrate the air entering the lungs. just as the nose performs this function. The oral cavity also lacks the filtering system that the nose is equipped with, but that is when the epiglottis comes into action. The epiglottis is a thin flap of skin that prevents food from entering the larynx (trachea). The epiglottis covers the trachea during swallowing and ingestion of food. The trachea is another organ of the respiratory system, the trachea or trachea is a 5 inch long tube made up of C-shaped rings of cartilage. It connects the larynx to the bronchi and allows air to pass through. With this function, a clear airway is guaranteed so that air can enter and exit the lungs. The epithelium lining the trachea also produces mucus that traps dust and other toxins, preventing them from reaching the lungs. The larynx sits beneath the trachea and contains special structures known as vocal cords, which allow the body to produce speech sounds. The vocal cords are folds of mucosa that vibrate to produce vocal sounds. Right next to the larynx is the pharynx. The pharynx is another name for the throat, which islocated at the end of the nasal cavity. After the air has been filtered through the nose, it must pass through the pharynx. Which consist of three separate regions: nasopharynx, oropharynx and laryngopharynx. The nasopharynx is located posterior to the nasal cavity. The oropharynx is where air passes when air enters through the oral cavity. Finally the air must filter through the laryngopharynx. As air continues to move through the respiratory system before exiting the lungs, the airways divide into left and right branches, known as the primary bronchi. The left and right bronchi filter air into each lung. Our left and right lungs are different sizes and shapes. Since the heart is on the left side, it is smaller. Our body has two lobes on the left and three lobes on the right. The main function of each lung is the process of gas exchange during breathing. The alveoli allow air to enter to exchange gases with the blood passing through the capillaries. Each lung is surrounded by a pleural membrane that provides the lung with space to expand and a negative pressure space relative to the outside of the body. Negative pressure allows the lungs to passively fill with air as they relax. The last major organ that makes up the respiratory system is the main muscle of the system known as the diaphragm. The diaphragm plays a vital role in the respiratory system. The main muscle during breathing is the contraction of the abdominal cavity: it expands the lungs during inhalation when we take in air. Between the ribs there are small intercostal muscles that help. The two groups are called internal and external intercostal muscles. The first groups are deeper groups that depress the ribs - this is the force of the air exhaled from our lungs. As the outside lifts the ribs expanding it causes air to be inhaled into the lungs. As mentioned above, although the respiratory system is made up of three main parts, there are numerous organs that play a significant role in ensuring life. There are numerous respiratory diseases that could affect activities of daily living. Here I will list those associated but not limited to respiratory diseases. Asthma: Chronic bronchial inflammatory disorder with airway obstruction due to bronchial edema and constriction and increased mucus production, signs and symptoms include dyspnea, wheezing and cough. There are many different triggers that can cause flare-ups such as, but not limited to, exercise, strong odors, cold air, stress, and allergies. Treatment options are inhalers or steroidsCroup: Acute viral infection of infants and children with laryngeal obstruction accompanied by barking cough and stridor. The most common agent in this case will be the influenza virus or respiratory syncytial virus also known as RSV. Treatment antibiotics cough medications and nonsteroidal anti-inflammatory drugs.Pertussis: Commonly known as whooping cough, which is a highly contagious bacterial infection of the pharynx and trachea caused by Bordetella pertussis. Antibiotic treatment.Diphtheria: An acute infection of the throat and upper respiratory tract caused by this bacterium. There are injections that are given between 6 and 8 weeks of life with a combination of other injections called DPT. Antibiotics and penicillin treatment. Respiratory tract infection: acute infection involving the nose, sinuses, pharynx, larynx, trachea and bronchi, in other words common cold signs and symptoms include, but are not limited to, fever, chills, soreness throat, fatigue and many others. like a chest discomfort. Treatment options are cough medicines, medications, antihistamines, and decongestants. The system