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Your Respiratory System, What You Should Know

"Breath in… breath out!" Can you recall the cliché from your gym instructor or your schoolteacher? The simple exercise is essential for your respiratory system and vital for the functioning of your other body systems.

The respiratory system integrates with other body systems by the supply of oxygen. When you breathe in, your lungs expand to receive oxygen from the air around you. Through your lungs, the oxygen enters the red blood cells of the circulatory system for distribution to your entire body.

What is the Respiratory System?

The respiratory system is the body's structure involved in gas exchange. On the one hand, the oxygen enters the lungs and into the blood vessels, then to the heart, and eventually, the body cells. On the other hand, the waste gas, carbon dioxide comes from the body cells by the blood vessels into the heart, and then to the lungs for exhalation.

The respiratory system connects to the circulatory system by the pulmonary blood vessels, which transport both gases to and from the heart.

Respiratory System Organs

The organs in the respiratory system are divided into two sections. One is the upper respiratory tract, and the next is the lower respiratory tract.

Nasal Cavity. The nasal cavity involves the two nostrils, which are always open for air passage into the lungs. The air inside the nose is made warm and humidified in readiness for the warmth in the body. Before passing through the nose to the next organ, some hairs inside the nose called cilia filter the oxygen to trap in the dust and other foreign particles.

Mouth. The mouth is the second respiratory tract entrance beside the nose. Occasionally, after taking some exercises, you get out of breath. Your body then craves plenty of oxygen, and that is when you find yourself using your mouth to breathe. The rapid heartbeat and the muscles when exercising require heavy breathing for extra oxygen.

Throat. The throat or pharynx is the air pathway that begins at the nasal cavity posterior end to extend up to the first part of the larynx. Both food and air pass in the pharynx towards the larynx.

Larynx. The larynx, which is also called the voice box, processes sound by using the air you breathe in. The organ lies above the trachea. The larynx contains a flap layer that only opens to let in air and covers its entrance to prevent foods and liquids from entering the lungs.

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