The is our body's first line of defense against airborne threats. From the nose to the , each part plays a crucial role in filtering, warming, and humidifying the air we breathe. It's like a sophisticated air purification system built right into our bodies.
Understanding this system is key for nurses. It helps us recognize signs of respiratory issues and provide better care. Whether it's treating a stuffy nose or managing more serious conditions, knowing how these parts work together is essential for effective patient care.
Anatomy and Physiology of the Upper Respiratory System
Nose, nasal cavity, and sinuses
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Nose protrudes from face contains allowing air entry and exit
divided by septum lined with mucous membranes and
traps particles and pathogens cilia sweep them toward for removal
Blood vessels warm and humidify incoming air
in roof detect odors (vanilla, coffee)
Paranasal sinuses are hollow spaces in surrounding bones (frontal, maxillary, ethmoid, sphenoid)
Lined with mucous membranes continuous with nasal cavity
Lighten skull weight, resonate speech, produce moisturizing mucus