Respiratory System

​Respiratory System

Experiment and Project P4-P5 September 13th 2022

Some text here about the topic of discussion

Respiration is a natural phenomenon that allows taking in oxygen and eliminating carbon dioxide. All cells need a constant supply of oxygen in order to live.

​

​Some text here about the topic of discussion.

​Respiratory System

What is oxygen?

Oxygen (O2) is an invisible gas, which is part of the air and is used for life on planet earth. We incorporate it through the respiratory system. It helps transform the food you eat into energy.

​

Oxygen is more abundant in the air that enters the lungs. During this process, another gas is generated, carbon dioxide (CO2), which is a waste product and must be removed from the body. It is most abundant in the air that comes out of the lungs.

​

​Some text here about the topic of discussion.

​What is the Main Function of the Respiratory System

​

1. Nostrils :

   The nostrils are the cavities inside the nose. In them, there are fine hairs and mucus. The function of the nostrils is to filter and heat the air that enters, blocking dust and other particles from entering the body.

​

​Some text here about the topic of discussion.

​Parts of The Respiratory System

​

2. Pharynx :

This organ located in the neck, it is part of both the respiratory system and the digestive system. Air and food pass through this cavity. That is why it works in conjunction with the larynx, controlling the opening and closing of the airways towards the trachea and the digestive tract towards the esophagus.

​Some text here about the topic of discussion.

​Parts of The Respiratory System

​

3. Larynx :

It is a tube that carries air from the nose to the windpipe. The larynx contains the vocal cords, which move when air passes, allowing the emission of sounds, our voice. It has a “cap” called the epiglottis that closes off access to the airways while food is sent up the digestive tract.

​Some text here about the topic of discussion.

​Parts of The Respiratory System

​

4. Windpipe or Trachea :

The trachea is a tube formed by cartilaginous rings, which give it flexibility and prevent it from closing, interrupting the passage of air. It is located between the larynx and the bronchi.

​Some text here about the topic of discussion.

​Parts of The Respiratory System

​

5. Bronchi and Bronchioles :

The trachea forks into two tubes called bronchi: The right bronchus and the left bronchus, which carry air to each of the lungs.

The bronchioles are the increasingly thin branches of the bronchi, which end in the pulmonary alveoli.​

​

​Some text here about the topic of discussion.

​Parts of The Respiratory System

​

6. Bronchi and Bronchioles :

​

They resemble bunches of grapes, where the bronchioles end. Inside them is where the gas exchange takes place. Oxygen passes from the alveolus to the blood, and carbon dioxide passes from the blood to the alveolus.​

​

​Some text here about the topic of discussion.

​Parts of The Respiratory System

​

on inhalation (inspiration), the lungs expand due to contraction of the intercostal muscles and the descending diaphragm (muscle on which the lungs rest). This causes air to enter the body, carrying oxygen. As your lungs expand, they fill with air.​

​Some text here about the topic of discussion.

​Respiratory Miovements

​

during exhalation (expiration) of air the reverse happens. The diaphragm relaxes, the intercostal muscles relax, and the rib cage decreases in size. The lungs contract and the air is expelled with all that carbon dioxide.

​

​Some text here about the topic of discussion.

​Respiratory Miovements

​