The main stem of the grapes represent the Trachea which is also known as the windpipe. The two large branching stems of the grapes connected to the main stem are known as Bronchi, left bronchi connects to the left lung while the right bronchi connects to the right lung. The little stems present in both two large branching stem of the grapes represents the Bronchioles, which is the finer subdivision of bronchi. Lastly, the individual grapes represent the Alveoli, which is the actual site of gas exchange for oxygen and carbon dioxide. Trachea, bronchi, bronchioles, and alveoli are part of the lower breathing system of the respiratory system. Nose, pharynx, and larynx are part of the upper breathing system of the respiratory system.
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Our body needs air to function and survive, the air we breathe passes through the nose, nasal passages, and then moves down to the trachea which is also known as windpipe, trachea then separates into two branches, known as left and right bronchi, one entering each lung. The bronchi subdivide many times inside the lungs, smaller branching pattern similar of the grapes, finally becoming hairlike tubes called bronchioles. In the last part of the terminal bronchioles are tiny bubble-like bunch of structures called alveoli or airsacs.
The passageway of air as it goes into the lungs
- Nose / Mouth
- Nasal cavity
- Pharynx
- Larynx
- Trachea
- Bronchi
- Bronchioles
- Alveoli
Breathing system involves inhalation and exhalation, this is the exchange of oxygen and carbon dioxide gases. During inhalation, air will enter the nose as the external organ of the respiratory system. It travels to the Nasal cavity for the air to be moistens, warms and filter. The air will then move to the pharynx which is a common passageway of food and air. Pharynx is divided into three region, nasopharynx, oropharynx, and laryngopharyx. As we inhale, the epiglottis will open the passageway of air to the larynx and moves down to the trachea which is also known as the windpipe. It will then moves into the right bronchi to enter the right lung and left bronchi to enter the left lung. Bronchi are branching into smaller tube called bronchioles. And finaly, after the bronchioles, the air will then reach the alveoli which is the actual site of gas exchange. When carbon dioxide moves out the respiratory system, it start with alveoli until it is out of the nose or mouth. To know more about gas exchange visit this link: brainly.ph/question/1547755
Higher concentration of oxygen in the alveoli diffuses to the lower concentration of oxygen in the blood. When oxygen diffuses to the blood, it will bind to the hemoglobin making the the blood oxygenated. Oxygenated blood are being pumped by the heart to be delivered in different parts of the body.
Breathing system involves the process inhalation and exhalation which is under the function of the respiratory system. The primary purpose of respiratory system is get rid of the carbon dioxide a waste product of metabolism and to takes in oxygen which serves as the fuel of the cells inside our body. The movement of oxygen and carbon dioxide in the system follows the law of diffusion. During inhalation, higher concentration of Oxygen in the atmosphere diffuses to the lower concentration of oxygen in the lungs. When oxygen diffuses to the lungs, the higher concentration of oxygen in the lungs diffuses to the blood. When blood have higher concentration of oxygen, it diffuses to the lower concentration of oxygen in different organs or cells in the body.
List of Muscles involved during Inhalation
- External Intercostals muscles
- Diaphragm
- Sternocleidomastoid Muslces
- Pectoralis minor
All of these muscles will contract during inhalation to facilitate air to move into the lungs particularly the oxygen air.
List of Muscles involved during Exhalation
- Internal Intercostals Muscles
- Diaphragm
- Abdominal Muscles
- Quadratus Lumborum
All these muscles will contract except for the diaphragm to facilitate exhalation of carbon dioxide gas.
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