The Respiratory System

There are so many things that I've learned in this chapter. I've learned that the respiratory system is consists of two lungs, upper and lower airways that conduct or move gas in and out of the system, terminal sacs called alveoli, thoracic cage and muscles for breathing. Respiratory system is related with the cardiovascular system known as cardiopulmonary system. I've also learned the difference of ventilation and respiration. Ventilation is the bulk movement of air down to the terminal end of the lungs where the actual gas exchange takes place with the bloodstream and respiration is the process of gas exchange in which oxygen is added to the blood and carbon dioxide is removed. There are two types of respiration, the external and internal respiration. The external respiration is where the gas exchange in the lungs occurs between blood and the air in the external atmosphere while internal respiration is where the oxygenated blood is transported internally via the cardiovascular system to the cells and tissues.

I've also learned the functions of the different cells in the respiratory system. The bronchi and bronchioles are branching tubes that support the atmospheric gas deep within lungs. Alveoli are small air sacs and terminal end of the respiratory system. Alveolar capillary membrane is the combination of alveoli and capillary, this is where the gas exchange takes place.

The functions of the upper respiratory tract are the following:
1. Heating and cooling inspired gases to the body temperature.
2. Filtering particles from inhaled gases.
3. Humidifying inspired gases.
4. Olfaction
5. Phonation
6. Ventilating or conducting the gas down the lower airways.

I've also learned that nose has three regions: the vestibular region, olfactory region and the respiratory region. Sinuses are lined with respiratory mucosa. It help in the prolongation and intensification of sound and it provide further warming and moisturizing of inhaled gases. Pharynx is a hollow, muscular structure lined with epithelial tissues and it is also known as throat. Pharynx is composed of three sections, the nasopharynx which is the uppermost layer, the oropharynx located behind the oral/buccal cavity and the laryngopharynx which is the lowermost portion of the pharynx and is also known as voice box.

There are different disorders that can be developed in this system, those are the atelectasis, pneumonia, asthma, emphysema, chronic bronchitis, pneumothorax, pleural effusion, tuberculosis and the chronic obstructive pulmonary disease.

Each system is rarely important to be learned by the people, with this things it helps us realized the things that we should do and not do. This topic is interesting, well every topic is interesting. But from here we can learn how our respiratory system works.

It could be more understandable if I made some activities for my classmates and if I have presented more clips in this chapter. But I hope so that what I reported was heard well by my calssmates.