What do we need to know about the human respiratory system?
RESPIRATORY SYSTEM – Here are some of the most important details and function that we need to know about the human respiratory system.
The human respiratory system is a series of organs which have distinct function responsible behind why we are breathing. Our body needs oxygen and the lungs is the major organ as it is where gas exchange happens. Accordingly, five minutes without the oxygen, brain cells begin to die which can possibly ultimately lead to brain damage and worse, death.
Now, here are the various important functions of the respiratory system:
- Breathing – Inhaling and exhaling is also called as pulmonary ventilation known commonly as breathing. It is when we inhale gas through the nose and mouth. The gas then moves through pharynx, larynx, and trachea to the lungs. As air exchange happened, the gas will be exhaled in the same path.
- External Respiration – Inhaling oxygen down to the lungs will be exchanged to carbon dioxide which is the gas human exhale and this is external respiration and this process happens through hundreds of millions of microscopic sacs called alveoli.
- Internal Respiration – This process is where oxygen is delivered from bloodstream to cells and removes carbon dioxide. The red blood cells absorb oxygen from the lungs and then carry it around the body via vasculature.
- Sound – Phonation is the sound produced by structures in the upper respiratory tract of the respiratory system. As air passes through the larynx from the lungs during exhalation, thus, sounds were created. The larynx is also known as the “voice box”. The greater the tension in the vocal chords the more rapid the vibrations and higher-pitched voice are produced as per Visible Body.
- Olfaction – This is the process where the sense of smell is being formed. And it happens when air enters the cavities and some chemicals bind together activating the nervous system receptors on the cilia.
READ ALSO:
What can you say about this? Let us know!
For more news and updates, follow us on Twitter:@philnews_ph and Facebook:@PhilNews
