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36 Cards in this Set

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  • Back
The nasal cavities are lined by mucous membranes of 2 types
Olfactory membranes
Respiratory mucus membranes
Line upper portions of the nasal cavities. To receive olfacotry stimuli (molecules in the air)
Olfactory membranes
Lines the lower portion of the nasal cavities. Function is to warm, moisten, and clean the air passing through and into the nasal pharynx
Respiratory mucus membranes
Innnervation for nasal cavities:
Olfaction: Olfactory Nerve (CN I)
General sensations: Small branches from Ophalamic Nerve (V1)
Maxillary Nerve (V2) of the trigeminal nerve (CN V)
____ enters the nasal cavity inferior to the inferior nasal concha and deposits tears.
Nasolacrimal duct
Lined with mucus membranes. Hollow and filled with air.
Paranasal sinuses
Paranasal sinuses found in the inferior of the _____(4)
Maxillae bones (sinuses), frontal bone, sphenoid bone, ethmoid bone.
___ communicate with the nasal cavities through small holes
Paranasal sinuses
Sinuses are interconnected. Functions: _____
to act as resonators for the voice and warm air
Common to the digestive and respiratory systems
Pharynx
Pharynx lies posterior to the: ______(3)
Nasal cavities, Mouth, and Larynx
Pharynx's superior limit is the______
Base of the skull
Pharynx's inferior limit is ____
C6
Pharynx communicates with 7 other cavities
2 nasal, 2 tympanic, mouth, larynx, esophagus
Lined with a mucous membrane
Pharynx
Primarily involved with respiration
Nasal pharynx
Nasal pharynx communicates anteriorly with the ___ via the ____
Nasal cavities
Choanae
Nasal phyrynx laterally receives the ____ from the tympanic cavities of the middle ear.
Auditory tubes
On the posterior wall of nasal pharynx is _____
Pharyngeal tonsil (Adenoids)
Inferiorly nasal pharynx communicates with the __ via a narrowed ____
Oral pharynx
Pharyngeal isthmus
Extends from the soft palate to the level of the hyoid bone.
Oral Pharynx
Receives food from the mouth and air from the nasal pharynx
Oral pharynx
Between the 2 palatine arches is _____
Palatine tonsil
Large in kids and small in adults
Oral pharynx
____and ___ are not as common as they used to be. The current thinking is that the tissue is needed to insure the proper maturity of the immune system.
Tonsillectomies
Adenoidectomies
Extends from the hyoid bone to the esophagus
Laryngeal pharynx
Laryngeal pharynx communicates superiorly with the ___ and inferiorly with the _____
Oral pharynx
Laryngeal aperture
Muscles of the ___ are arranged in 2 layers: ___
Pharynx
Outer circular layer
Inner longitudinal layer
Outer Circular layer has 3 paired muscles ______(3)
Superior constrictors
Middle constrictors
Inferior constrictors
Superior constictors has __ subdivision and correlates to the _____
4
Nasal pharynx
Middle constrictors have ___ subdivision and correlates to the _____
2
Oral pharynx
Inferior constrictors have __ subdivision and correlates to the ___
2
Laryngeal pharynx
Function of outer circular layer is ___
To constrict the pharynx
Innervation of outer circular layer
Pharyngeal plexus from CN IX and CN X
There are three muscles, which run longitudinally to the three groups of constrictor muscles
Inner longitudinal layer
Inner longitudinal layer function is to _____
Elevate the pharynx