Respiratory System #2
not an eff up
root, apex, bridge, nostrils
What is the external anatomy of the nose?
airway for respiration and moistens and warms air
What are the first two functions of the nose?
filters air and clenses it of foreign matter
What is the last function of the nose?
olfactory receptors and resonating chamber for speech
What is the second two functions of the nose?
posterior to external nose
Where is the nasal cavity?
conchae, olfactory mucosa, repiratory mucosa, nasal septum, external nares, vestibule, vibrissae
What are the 7 components of the anatomy of the nose?
openings for air to enter or leave
Define external nares.
divides nasal cavity into right and left halves. formed by nasal cartilages and vomer bone
Define nasal septum.
just above the nostrils; lined with skin, sebaceous glands, and hair follicles
hair; filters air
contains receptors for smell
Define olfactory mucosa.
pseudostratified ciliated columnar epithelium; mucus traps dust bacteria and debris
Define respiratory mucosa.
mucus covered projections; increases surface area
surround the nose; frontal, sphenoid, ethmoid, maxillary bones
Where are the paranasal sinuses located?
lighten the skull, warm and moistens air, produce, sound resonation, buffer area
What are the five functions of the paranasal sinuses?
connects nasal cavity to the larynx and esophagus; throat
pahtway for food and air
What is the function of the pharynx?
posterior to the nasal cavity
Where is the nasopharynx?
air passageway only
What is the function of the nasopharnx?
wall which trap and destroy pathogen entering in the air
Define pharyngeal tonsils, Adenoids.
drain middle ear cavities and allow pressure to equalize with amospheric pressure
Define auditory tubes.