Respiratory System
Respiratory System - Ans -a series of organs responsible for taking in oxygen and
expelling carbon dioxide
What is the primary organ of the respiratory system? - Ans -The lungs
What is the function of the lungs? - Ans -To carry out the gas exchange that occurs as
we breathe.
How do the lungs work? - Ans -Red blood cells collect the oxygen from the lungs and
carry it to the parts of the body where it is needed. The red blood cells then collect the
carbon dioxide and transport it back to the lungs, where it leaves the body when we exhale.
Hypoxia - Ans -Decrease in oxygen
Anoxia - Ans -Complete lack of oxygen
How long can the body go without oxygen, before brain cells begin to die? - Ans -Four
minutes
What is the first part of the respiratory system, where the oxygen enters? - Ans -The
nose or mouth
What is the function of the nose/mouth? - Ans -To bring oxygen in, and to the sinuses
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Sinuses - Ans -Hollow spaces in the skull.
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, Function of the sinuses - Ans -to help regulate the temperature and humidity of the
air we breathe.
Pharynx - Ans -connects the nasal and oral cavities with the larynx and esophagus. It
is commonly referred to as the throat. In the digestive system, its muscular walls function
in the process of swallowing and it serves as a pathway for the movement of food from the
mouth to the esophagus. As part of the respiratory system, it allows for the movement of air
from the nose and mouth to the larynx in the process of breathing.
Nasopharynx - Ans -The part of the pharynx that lies above the soft palate; anteriorly
it opens into the nasal cavities through the choanae; inferiorly, it communicates with the
oropharynx through the pharyngeal isthmus; laterally it communicates with tympanic
cavities through pharyngotympanic (auditory) tubes.
Oropharynx - Ans -The portion of the pharynx that lies posterior to the mouth; it is
continuous above with the nasopharynx via the pharyngeal isthmus and below with the
laryngopharynx.
Laryngopharynx - Ans -The part of the pharynx lying below the aperture of the larynx
and behind the larynx; it extends from the vestibule of the larynx to the esophagus at the
level of the inferior border of the cricoid cartilage. PHOOD
Larynx - Ans -the hollow muscular organ forming an air passage to the lungs and
holding the vocal cords in humans and other mammals; the voice box. LALALA
Trachea - Ans -the tube that connects your mouth and nose to your lungs. You can
also call it the windpipe. It is in the front of your neck, and is very hard with tough rings
around it. Feel the front of your neck.
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Respiratory System - Ans -a series of organs responsible for taking in oxygen and
expelling carbon dioxide
What is the primary organ of the respiratory system? - Ans -The lungs
What is the function of the lungs? - Ans -To carry out the gas exchange that occurs as
we breathe.
How do the lungs work? - Ans -Red blood cells collect the oxygen from the lungs and
carry it to the parts of the body where it is needed. The red blood cells then collect the
carbon dioxide and transport it back to the lungs, where it leaves the body when we exhale.
Hypoxia - Ans -Decrease in oxygen
Anoxia - Ans -Complete lack of oxygen
How long can the body go without oxygen, before brain cells begin to die? - Ans -Four
minutes
What is the first part of the respiratory system, where the oxygen enters? - Ans -The
nose or mouth
What is the function of the nose/mouth? - Ans -To bring oxygen in, and to the sinuses
1
Sinuses - Ans -Hollow spaces in the skull.
Page
, Function of the sinuses - Ans -to help regulate the temperature and humidity of the
air we breathe.
Pharynx - Ans -connects the nasal and oral cavities with the larynx and esophagus. It
is commonly referred to as the throat. In the digestive system, its muscular walls function
in the process of swallowing and it serves as a pathway for the movement of food from the
mouth to the esophagus. As part of the respiratory system, it allows for the movement of air
from the nose and mouth to the larynx in the process of breathing.
Nasopharynx - Ans -The part of the pharynx that lies above the soft palate; anteriorly
it opens into the nasal cavities through the choanae; inferiorly, it communicates with the
oropharynx through the pharyngeal isthmus; laterally it communicates with tympanic
cavities through pharyngotympanic (auditory) tubes.
Oropharynx - Ans -The portion of the pharynx that lies posterior to the mouth; it is
continuous above with the nasopharynx via the pharyngeal isthmus and below with the
laryngopharynx.
Laryngopharynx - Ans -The part of the pharynx lying below the aperture of the larynx
and behind the larynx; it extends from the vestibule of the larynx to the esophagus at the
level of the inferior border of the cricoid cartilage. PHOOD
Larynx - Ans -the hollow muscular organ forming an air passage to the lungs and
holding the vocal cords in humans and other mammals; the voice box. LALALA
Trachea - Ans -the tube that connects your mouth and nose to your lungs. You can
also call it the windpipe. It is in the front of your neck, and is very hard with tough rings
around it. Feel the front of your neck.
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