NOSE, MOUTH, THROAT Flashcards
FN of Nose
- warm, filter, moisten air
- sensory organ - smell
Vibrissae
nasal hairs that line the anterior portion of the nasal cavity
- filters coarse material from inhaled air
Kiesselbach’s plexus
located in the anterior portion of nasal cavity
- rich vascular network
- common site of nosebleeds
superior, middle, inferior turbinates
- location: ridges on the lateral wall of nasal cavity
- FN: increases SA available for warming, humidifying, filtering
meatus
- openings that underlies each turbinate
- sinuses that drain into the middle meatus
where do tears from nasolacrimal duct drain into?
inferior meatus
List the paranasal sinuses
- FN?
- air-filled pockets lined with epithelium within the cranium
- FN: lighten the weight of skull + resonator of sound + secretes mucous
- Frontal sinus (2)
- Maxillary sinus (2)
- Ethmoid sinus (2)
- Sphenoid sinus (2)
which sinuses are absent at birth?
Frontal and sphenoid absent
Only maxillary + ethmoid sinuses are present
Name and describe the borders of the oral cavity
anterior - lips
superior - hard palate + soft palate
lateral - cheeks
inferior - tongue
hard palate + soft palate
Uvula
hard - anterior, whitish in colour, bony
soft - posterior, pinkier, a mobile arch of muscle
uvula - an extension of the soft palate
Describe the anatomy and FN of the tongue
- striated muscle
- papillae: round, bumpy elevations on the dorsal aspect
- vallate papillae: normal inverted V shape projections on dorsoposterior aspect
frenulum: connects tongue to floor of mouth
FN: mastication, swallowing, speech, taste
Name and describe the 3 salivary glands
parotid - largest, within cheeks
sublingual - smallest, located at the floor of moth
submandibular - found @ angle of jaw
FN: all 3 secrete saliva to start digestion of food
teeth (adults vs children)
- teeth develop in utero
- children have 20 temporary (deciduous) teeth that erupt between 6-24 months and lost/replaced between 6-12 years
- adults have 32
