BMS 133: Nasal Cavity, Sinuses, and Pterygopalatine Fossa Bony Boundaries Quiz
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Questions and Answers

Which structure forms the inferior boundary of the pterygopalatine fossa?

  • Palatine (correct)
  • Pterygoid
  • Sphenoid
  • Maxilla

    • Through which foramen does the maxillary artery pass to reach the nasal cavity?

  • Sphenopalatine foramen (correct)
  • Inferior orbital fissure
  • Foramen rotundum
  • Pterygoid canal

    • Which nerve innervates the gingiva and maxillary molar pulp?

  • Zygomatic nerve
  • Posterior superior alveolar nerve (correct)
  • Anterior superior alveolar nerve
  • Middle superior alveolar nerve

    • What is the function of the infraorbital nerve once it reaches the maxilla?

    <p>Numb cutaneous nerves like inferior palpebral</p> Signup and view all the answers

    Where are the cell bodies of the postsynaptic sympathetic neurons located in relation to the pterygopalatine fossa?

    <p>Superior cervical ganglion</p> Signup and view all the answers

    Which nerve branch innervates the anterior teeth, gingiva, and maxillary sinus mucosa?

    <p>Anterior superior alveolar nerve</p> Signup and view all the answers

    What is the main function of the pterygopalatine ganglion GSA branches?

    <p>Pharyngeal innervation</p> Signup and view all the answers

    Which structure is at the top of the pterygopalatine fossa?

    <p>Sphenopalatine foramen</p> Signup and view all the answers

    Which nerve provides innervation to the premolars, gingiva, and maxillary sinus mucosa?

    <p>Middle superior alveolar nerve</p> Signup and view all the answers

    What condition is characterized by swollen mucous membrane in the nasopharynx?

    <p>Rhinitis</p> Signup and view all the answers

    Which artery supplies blood to the nasal cavity's lateral wall?

    <p>Maxillary artery</p> Signup and view all the answers

    Which muscle is responsible for dilating the alar of the nose?

    <p>Nasalis muscle</p> Signup and view all the answers

    What is the main clinical relevance of a deviated septum?

    <p>Impaired airflow through the nose</p> Signup and view all the answers

    Which bone forms the roof of the nasal cavity?

    <p>Frontal bone</p> Signup and view all the answers

    Which artery is responsible for supplying blood to the external nose?

    <p>Facial artery</p> Signup and view all the answers

    What structure is missing in some populations and contributes to the nasal structure?

    <p>Septal cartilage</p> Signup and view all the answers

    Which part of the nasal cavity receives blood supply from the anterior ethmoidal artery?

    <p>Anterior septum and lateral nasal wall</p> Signup and view all the answers

    What is the correct venous drainage for the nasal cavity?

    <p>Ophthalmic veins</p> Signup and view all the answers

    Which nerve accompanies the greater palatine artery as it travels through the palatine canal to the hard palate?

    <p>Greater palatine nerve</p> Signup and view all the answers

    Which structure receives postsynaptic parasympathetic innervation from the pterygopalatine ganglion via the zygomatic nerve?

    <p>Lacrimal gland</p> Signup and view all the answers

    Which artery supplies blood to the nasal cavity after passing through the sphenopalatine foramen?

    <p>Sphenopalatine artery</p> Signup and view all the answers

    Which nerve receives presynaptic parasympathetic fibers from the superior salivatory nucleus via the greater petrosal nerve?

    <p>Pterygopalatine ganglion</p> Signup and view all the answers

    Which artery follows the course of the nasopalatine nerve?

    <p>Septal artery</p> Signup and view all the answers

    Which venous plexus receives drainage from the veins corresponding to the branches of the maxillary artery?

    <p>Pterygoid venous plexus</p> Signup and view all the answers

    Which artery enters the maxillary bone along with the posterior superior alveolar nerve?

    <p>Posterior superior alveolar artery</p> Signup and view all the answers

    Which structure receives its blood supply from the artery that travels with the greater and lesser palatine nerves?

    <p>Posterior palate</p> Signup and view all the answers

    Which structure separates the nasal cavity from the oral cavity/palate inferiorly?

    <p>Hard palate</p> Signup and view all the answers

    Which nerve innervates the nasal cavity and is responsible for the lack of olfactory function in case of anosmia?

    <p>Olfactory nerve (CN 1)</p> Signup and view all the answers

    Which sinus has an ostium at the top which can lead to poor drainage if obstructed?

    <p>Maxillary sinus</p> Signup and view all the answers

    Which sinus has the feature of sinuses growing through time and males generally having larger sinuses compared to females?

    <p>Maxillary sinus</p> Signup and view all the answers

    What is the main cause of referred pain to the maxillary teeth from the maxillary sinus?

    <p>Infection irritating nerves that go to the pulp</p> Signup and view all the answers

    Which structure innervates the ethmoid air cells located in the superior meatus?

    <p>Posterior ethmoid nerve (V1)</p> Signup and view all the answers

    What can happen if the semilunar hiatus gets filled with liquid in the maxillary sinus?

    <p>Nerve irritation</p> Signup and view all the answers

    Which nerve primarily supplies the frontal sinus innervating it via the infundibulum?

    <p>Supraorbital nerve (V1)</p> Signup and view all the answers

    "Pterygoid plexus" is related to:

    <p>&quot;Maxillary sinus venous drainage&quot;</p> Signup and view all the answers

    Which tobacco smoke constituent combines with guanine after cytochrome p450 processing?

    <p>Benzopyrene</p> Signup and view all the answers

    What is the term used to measure smoking exposure as Packs per day x Number of years?

    <p>Pack years</p> Signup and view all the answers

    How does smoking affect the immune system?

    <p>Makes the body less successful at fighting infections</p> Signup and view all the answers

    Which constituent in cigarettes leads to vasoconstriction of eye vessels and increases the risk of macular degeneration?

    <p>Nicotine</p> Signup and view all the answers

    What is the primary addictive alkaloid present in tobacco leaves?

    <p>Nicotine</p> Signup and view all the answers

    How does tobacco and alcohol consumption interact in terms of oral cancer risk?

    <p>Have a multiplicative effect on oral cancer risk</p> Signup and view all the answers

    What is the main reason for the increased sensitivity to nicotine among teenagers?

    <p><strong>Developmental brain differences</strong></p> Signup and view all the answers

    What is the primary function of varenicline (Chantix) in smoking cessation?

    <p>It is a partial agonist of the major receptor involved in nicotine addiction, reducing cravings.</p> Signup and view all the answers

    What is a primary concern regarding the use of e-cigarettes among youth and young adults?

    <p>Nicotine exposure from e-cigarettes can harm brain development in youth and young adults.</p> Signup and view all the answers

    Which of the following is a component found in e-liquid used in e-cigarettes?

    <p>Nicotine</p> Signup and view all the answers

    According to the information provided, which of the following oral conditions has an increased prevalence among e-cigarette users?

    <p>Nicotinic stomatitis</p> Signup and view all the answers

    Which of the following statements about the effects of e-cigarettes on oral health is true?

    <p>E-cigarette users develop a distinct oral microbiome compared to non-users.</p> Signup and view all the answers

    Which of the following statements about the components of e-cigarette vapor is true?

    <p>The components of e-cigarette vapor have known cytotoxic, genotoxic, and carcinogenic properties.</p> Signup and view all the answers

    According to the information provided, which of the following statements about e-cigarettes and smoking cessation is true?

    <p>E-cigarettes work as a modality to quit conventional cigarettes, but their effectiveness is unclear.</p> Signup and view all the answers

    Which of the following statements about the impact of brief provider advice on smoking cessation is true?

    <p>Brief provider advice doubles the likelihood of a patient abstaining from smoking.</p> Signup and view all the answers

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