ATE 1110 - Respiratory
System
, Organs of Respiratory System Nostrils, nasal cavity, nasopharynx, larynx, trachea, and lungs
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Functions of Respiratory System kr kr kr
External respiration, regulates the acidity of extracellular fluids of body, assists in temperat kr kr kr kr kr kr kr kr kr kr kr kr
ure control, helps in voice production
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Organs of upper respiratory tract kr kr kr kr Nostrils, nasal cavity, nasopharynx, larynx, and trachea kr kr kr kr kr kr
Organs of lower respiratory tract kr kr kr kr
Lungs, and branches of trachea ( bronchioles, bronchi, and alveoli ) kr kr kr kr kr kr kr kr kr kr
Nostrils (nares) kr The external openings for the nasal cavity
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The shape of nostrils varies in different animals
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The nostrils are very delicate in horses-while in pigs, nostrils are rigid
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The skin surrounding the nostrils is called muzzle and contains thick and non-
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hairy skin with numerous sweat glands
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External Nares External opening of the respiratory tract
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Philtrum It is a groove between nostrils and upper lip
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Alar fold kr A bulblike structure inside nostrils that allows circulation of air
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Nasal Cavities The two nasal cavities are separated by a cartilage called nasal septum
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Hard palate and soft palate separate the nasal cavities from mouth cavity
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Distally nasal cavities continue into pharynx
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Both nasal cavities are lined by pseudostratified columnar epithelium that is covered a mucus mem
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brane
Nasal turbinate bones or conchaekr kr kr kr
These are like two selves, which divide each nasal cavity into three meatuses (passages) call
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ed dorsal nasal meatus, middle nasal meatus, and ventral nasal meatus
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They are highly vascular and lined by pseudostratified epithelium that is covered mucus membrane
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. This arrangement helps to clean, warm and humidify the inhaled air
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Olfactory nerve (1st cranial nerve) kr kr kr kr
The mucosa in the caudal part of nasal cavity receives sensory nerve fibers from the olfactor
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y nerve, that carries impulses of smell to the brain
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System
, Organs of Respiratory System Nostrils, nasal cavity, nasopharynx, larynx, trachea, and lungs
kr kr kr kr kr kr kr kr kr kr
Functions of Respiratory System kr kr kr
External respiration, regulates the acidity of extracellular fluids of body, assists in temperat kr kr kr kr kr kr kr kr kr kr kr kr
ure control, helps in voice production
kr kr kr kr kr
Organs of upper respiratory tract kr kr kr kr Nostrils, nasal cavity, nasopharynx, larynx, and trachea kr kr kr kr kr kr
Organs of lower respiratory tract kr kr kr kr
Lungs, and branches of trachea ( bronchioles, bronchi, and alveoli ) kr kr kr kr kr kr kr kr kr kr
Nostrils (nares) kr The external openings for the nasal cavity
kr kr kr kr kr kr
The shape of nostrils varies in different animals
kr kr kr kr kr kr kr
The nostrils are very delicate in horses-while in pigs, nostrils are rigid
kr kr kr kr kr kr kr kr kr kr kr
The skin surrounding the nostrils is called muzzle and contains thick and non-
kr kr kr kr kr kr kr kr kr kr kr kr
hairy skin with numerous sweat glands
kr kr kr kr kr
External Nares External opening of the respiratory tract
kr kr kr kr kr kr
Philtrum It is a groove between nostrils and upper lip
kr kr kr kr kr kr kr kr
Alar fold kr A bulblike structure inside nostrils that allows circulation of air
kr kr kr kr kr kr kr kr kr
Nasal Cavities The two nasal cavities are separated by a cartilage called nasal septum
kr kr kr kr kr kr kr kr kr kr kr kr
Hard palate and soft palate separate the nasal cavities from mouth cavity
kr kr kr kr kr kr kr kr kr kr kr
Distally nasal cavities continue into pharynx
kr kr kr kr kr
Both nasal cavities are lined by pseudostratified columnar epithelium that is covered a mucus mem
kr kr kr kr kr kr kr kr kr kr kr kr kr kr
brane
Nasal turbinate bones or conchaekr kr kr kr
These are like two selves, which divide each nasal cavity into three meatuses (passages) call
kr kr kr kr kr kr kr kr kr kr kr kr kr kr
ed dorsal nasal meatus, middle nasal meatus, and ventral nasal meatus
kr kr kr kr kr kr kr kr kr kr
They are highly vascular and lined by pseudostratified epithelium that is covered mucus membrane
kr kr kr kr kr kr kr kr kr kr kr kr kr
. This arrangement helps to clean, warm and humidify the inhaled air
kr kr kr kr kr kr kr kr kr kr kr
Olfactory nerve (1st cranial nerve) kr kr kr kr
The mucosa in the caudal part of nasal cavity receives sensory nerve fibers from the olfactor
kr kr kr kr kr kr kr kr kr kr kr kr kr kr kr
y nerve, that carries impulses of smell to the brain
kr kr kr kr kr kr kr kr kr
