Respiratory System by yasley carrera https://padlet.com/yasleycarrera/cez43y206voarnsi The human respiratory system is a series of organs responsible for taking in oxygen and expelling carbon dioxide. en-us 2020-06-23 01:08:25 UTC 2020-06-23 01:41:08 UTC hello@padlet.com Respiratory System yasleycarrera https://padlet.com/yasleycarrera/cez43y206voarnsi/wish/636808305 The human respiratory system is a series of organs responsible for taking in oxygen and expelling carbon dioxide.

Parts of the respiratory system
·         Noseand nasal cavity: is a large, air-filled space above and behind the nose in the middle of the face. The nasal septum divides the cavity into two cavities, also known as fossae.

·         Sinuses: are a connected system of hollow cavities in the skull. The largest sinus cavities are about an inch across. Others are much smaller.

·         Mouth: also known as the oral cavity, is the secondary external opening for the respiratory tract. Most normal breathing takes place through the nasal cavity, but the oral cavity can be used to supplement or replace the nasal cavity’s functions when needed.

·         Throat (pharynx): is a muscular tube that runs from the back of your nose down into your neck. It contains three sections: the nasopharynx, oropharynx and laryngopharynx, which is also called the hypopharynx.

·         Voice box (larynx): is the portion of the respiratory (breathing) tract containing the vocal cords which produce sound. It is located between the pharynx and the trachea. The larynx, also called the voice box, is a 2-inch-long, tube-shaped organ in the neck.

How Do We Breathe?

Breathing starts when you inhale air into your nose or mouth. It travels down the back of your throat and into your windpipe, which is divided into air passages called bronchial tubes 
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