The Human Respiratory System

Jump To The:

 · Nose
· Nasal cavity
· Pharynx
· Glottis
· Epiglottis
· Larnyx
· Trachea
· Bronchi tubes
· Bronchial tubes
· Bronchioles
· Alveoli

The human respiratory system consists of several organs whose main purposes are to deliver rich oxygen gas into the blood stream, while at the same time removing toxic carbon dioxide waste as well. It is made up of the nose, the nasal cavity, the pharnyx, the glottis and epiglottis, the larnyx, the trachea, the bronchus, bronchial tubes, bronchioles, and alveolis. All of this work together in order to maintain the flow of gasses in and out of the human body.

The nose is the entryway into the respiratory system. Return to top.

The nasal cavity is the area inside of the nose that moistens the air, warms it with blood vessels, and cleans it with cilla. Return to top.

The pharynx is where the nasal cavity and oral caviy (generally speaking, the inside of the mouth) meet. Return to top.

The glottis is the opening to the trachea. Return to top.

The epiglottis closes when you swaller to prevent any foods or liquids from entering the remainder of the respiratory system. Return to top.

The larnyx is the voice box, which is used to speak. Return to top.

The trachea is the wind pipe, it serves as the main road that air travels in and out of. Return to top.

The two bronchi (pronounced as bronchus when it is singular) tubes lead the air into the lungs. Return to top.

The bronchial tubes branch of the bronchi. Return to top.

The bronchioles are smaller branches off of the bronchial tube, and each one contains alveoli attached to it. Return to top.

An alveoli is an air sac. When the air finally reaches it, it goes inside. It is shaped as a sphere and surrounded by capillaries on its outer surface. Capillaries are so thing that allows the oxygen to diffuse out of the alveoli and into the surrounding capillaries, all the while releasing carbon dioxide back into the alveoli to be exhaled. Return to top.