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42 Cards in this Set
- Front
- Back
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The posterior wall of the pharynx is related to which fascia layer?
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prevertebral
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What is the pharangeal raphe?
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A fibrous band that serves as an attachment site for the principal muscles of the pharynx
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Is the pharynx a complete tube?
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No, it is open to the nasal cavity, oral cavity, and laryngeal cavity
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What are the four layers of the pharyngeal wall?
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mucous membrane, submucosa, muscular, and loose connective/buccopharyngeal fascia
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The submucosa layer forms this fascia, which attaches to the skull defining the upper limits fo the pharyngeal wall?
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Pharyngobasilar fascia
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Pharyngeal plexus of nerves lies on this layer of the pharyngeal wall?
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muscular layer
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The loose connective tissue of the pharynx forms this fascia, which is continous with the pretracheal fascia?
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Buccopharyngeal fascia
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What separates the pretracheal/buccopharyngeal fascia with the prevertebral fascia?
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loose areolar tissue of the retropharyngeal space
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Where do the pharynx constrictor muscles insert posteriorly?
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pharyngeal raphe
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What can't I have sex with?
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your college degree
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What is the general purpose fo the pharyngeal constrictors?
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they generate a wave of contraction that carries the food bolus down the esophagus
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What structure can be found between the upper anterior attachment of the superior constrictor with the pterygoid hamulus and its posterior attachment on the pharyngeal tubercle?
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auditory tube
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What structure can be found between the superior and middle constrictors?
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Glossopharyngeal nerve and stylopharyngeus
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What structure can be found between the middle and inferior constrictors?
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Internal Laryngeal Nerve
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What structure can be found deep and inferior to the inferior fibers of the inferior constrictor muscle?
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recurrent laryngeal nerve
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What nerve innervates the stylopharyngeus muscle?
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glossopharyngeal CN 9
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What are the three chiefly longitudinal muscles of the pharynx that elevate the pharynx and larynx during swallowing?
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Salpingopharyngeus, Stylopharyngeus, Palatopharyngeus
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Which muscle is the only one not innervated by the Vagus nerve?
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stylopharyngeus muscle
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What are the choanae?
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posterior nasal passages, communication between the nose and the pharynx
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A collection of lymphoid tissue in the mucous membrane at the upper end of the posterior wall of the nasopharynx?
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Pharyngeal Tonsil
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What are pharyngeal tonsils called when enlarged?
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Adenoids
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Adenoids result in the use of mouth breathing, why?
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Obstruction of the passage of air from the nasal cavities through the choanae into the nasopharynx
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What can be found in the lateral wall of the nasopharynx?
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Auditory tube
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What is the hood-like tubal elevation over the pharyngeal orifice of the auditory tube that is produced by the projection of the base of the cartilaginous part of the auditory tube?
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Torus Tubarius
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Behind the tubal elevation of the torus, this recess can be found in the nasopharynx?
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Pharyngeal recess
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This mucous membrane extends inferiorly from the torus and contains a muscle of the same name?
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Salpingopharyngeal Fold
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How can infectious materials pass pharynx pass to the middle ear?
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This is due to the continuity of the pharyngeal mucosa with the mucosa of the middle ear
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What can occur if the pharyngeal tonsils become inflammed (in terms of the ear)?
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Otitis media (infection of the middle ear)
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The superior border of the epiglottis defines the inferior limit of this part of the pharynx
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Oropharynx
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The palatine tonsils are located in the lateral wall of this part of the pharynx?
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oropharynx
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Palatine tonsils lie in between these two arches?
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palatoglossal and palatopharyngeal
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What is the laryngeal aditus?
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opening of the larynx
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This is a small depression of the laryngopharyngeal cavity on each side of the inlet of the larynx?
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Piriform recess
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What "fold" separates the deep mucous membrane-lined fossa from the inlet of the larynx?
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Aryepiglottic Fold
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What is the clinical relavence of the piriform recess?
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Sharp food items being lodges here may pierce the mucous membrane and injure the internal laryngeal nerve causing anesthesia of the laryngeal mucous membrane as far inferiorly as the vocal cords
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What nerve lies deep in the piriform recess?
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Internal Laryngeal Nerve
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On which constrictor will you find most of the pharyngeal plexus of nerves?
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Middle
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What forms the pharyngeal plexus?
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Pharyngeal branches of the vagus, glossopharyngeal, and sympatheitcs from the SCG
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The vagus innervates all muscles of the pharynx except for these two?
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stylopharyngeus (CN9) and tensor veli palatini (CN5)
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Bubar palsy, a condition resulting in the degeneration of motor neurons in the nuclei of CN 9 and 10, will result in what symptom?
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Choking and dysphagia
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This nerve provides sensory innervation for all of the pharynx except the anterior part, what is the nerve and which one does the anterior part of the nasopharynx?
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CN 9, and a maxillary division of CN 5
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What is the arterial supply to the pharynx?
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Ascending pharyngeal branch of the ECA
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