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Respiratory system: Nose to Pharynx: Anatomy

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Published on 11 May 2022 / In Biology / Biology Grade 9

The upper airways or upper respiratory tract includes the nose and nasal passages, paranasal sinuses, the pharynx, and the portion of the larynx above the vocal folds (cords). The lower airways or lower respiratory tract includes the portion of the larynx below the vocal folds, trachea, bronchi and bronchioles.

What is the correct order of the respiratory system?
What Are the Parts of the Respiratory System? The respiratory system includes the nose, mouth, throat, voice box, windpipe, and lungs.

How is the pharynx connected to the respiratory system?
The nasal pharynx connects to the second region, the oral pharynx, by means of a passage called an isthmus. The oral pharynx begins at the back of the mouth cavity and continues down the throat to the epiglottis, a flap of tissue that covers the air passage to the lungs and that channels food to the esophagus.

What is the correct order of the pharynx?

The pharynx is divided into three regions according to location: the nasopharynx, the oropharynx, and the laryngopharynx (hypopharynx). The nasopharynx is the portion of the pharynx that is posterior to the nasal cavity and extends inferiorly to the uvula.

What are the 6 stages of the breathing process?
Journey of a Breath of Air
Ventilation.
Pulmonary gas exchange.
Gas transport.
Peripheral gas exchange.

What is the order in which food or air would pass through the pharynx?
Air, food and liquid all pass through this common passage, the oropharynx. The two passages separate again here, in the hypopharynx. Food and liquid pass backward into the esophagus on their way to the stomach. Air passes forward through the larynx and into the trachea, on its way to the lungs.

What makes up the pharynx?
The pharynx is composed of the nasopharynx, oropharynx, and laryngopharynx. The pharynx extends from the caudal end of the nasal cavity/oral cavity to the larynx and is divided by the soft palate to form the nasopharynx dorsally and the oropharynx ventrally.

How many openings does the pharynx have?
The pharyngeal cavity has seven (7) openings which are: 1-The paired posterior nose –rostrodorsally which connect nasopharynx with nasal cavity.

The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax). The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi. The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopic sacs, called alveloi. watch video for more......

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