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The major organs of the Respiratory System are:
Lungs: The main function of the Lungs is to help oxygen from the air we breathe enter the red blood cells. These red blood cells then carry oxygen around the body to be used in the cells found in various parts of the body. In addition, Lungs also help the body dispose of carbon dioxide gas when we exhale.
Trachea: The Trachea is a wide, hollow tube that connects the larynx to the bronchi of the lungs. The Trachea is an essential part to the body's airway. The vital function of the Trachea is to provide air flow to and from the lungs for respiration.
Bronchi: Bronchi are extensions of the windpipe that shuttle air to and from the lungs. As these organs are the main passageway into the lungs. The function of Bronchi is to carry air through the lung tissue.
Diaphragm: The diaphragm is the primary muscle used in the process of inspiration, or inhalation. Lying at the base of the thorax (chest), the diaphragm separates the abdominal cavity from the thoracic cavity.
The Respiratory System interacts with the Circulatory System and the Digestive System. The Respiratory System interacts with the Circulatory System by working together to be the body's oxygen transport system. The circulatory system pumps blood around the body, and the respiratory system facilitates the gas exchange that keeps the blood fresh. More specifically, Oxygen low blood enters the heart through the right atrium. From there, the blood flows through the tricuspid valve into the right ventricle. When the heart contracts during the diastolic phase, this blood is pumped out through the pulmonary arteries that run toward the lungs. At the lungs, the blood is oxygenated. After oxygenation, the fresh blood is circulated back through the bronchial veins and into the pulmonary veins. These run from the lungs and drain into the heart's left atrium. This oxygen-rich blood is then passed into the left ventricle and pumped out through the aorta and into the rest of the body. The digestive tract provides the nutrient molecules, through the process of digestion, while the respiratory tract provides oxygen. As such, the two systems work together to give your cells the ingredients they need to produce energy, which they use to communicate, build cellular products and grow.
Analogy
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The Respiratory System is like a tree because:
- it absorbs oxygen
- it releases carbon dioxide
- it is supported
The Respiratory System is like a tree because both absorb oxygen. The Bronchioles of the Respiratory System act like the leaves of a tree. As both absorb oxygen, as well as release carbon dioxide. In addition, the Respiratory System is like a tree because both are supported in a way. The Trachea supports the Respirator System just like how the trunk supports a tree.
Structure and Function
Alveoli are tiny sacs within our lungs that allow oxygen and carbon dioxide to move between the lungs and bloodstream. Alveoli are composed of simple squamous epithelial tissue. This is because oxygen needs to diffuse through while simultaneously carbon dioxide needs to diffuse out. If the tissue was stratified columnar it would be harder for the gases to enter/leave. Therefore the simple squamous epithelial tissue means the gases can diffuse through easily and more efficiently. I believe that because the Alveoli is made up squamous epithelial tissue, it is able to easily diffuse gases, such as oxygen and carbon dioxide. I believe this is why the Alveoli is responsible for this job.
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