Anatomy of the Nasal Cavity
40 Questions
5 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Where does the pharynx extend from?

  • From the nasal cavity to the oral cavity
  • From the base of the skull to the level of the 6th cervical vertebra (C6) (correct)
  • From the larynx to the trachea
  • From the base of the skull to the level of the 4th cervical vertebra (C4)

    • What is the function of the nasopharynx?

  • Acts as a passage for air only (correct)
  • Not a passage for anything
  • Acts as a passage for food and air
  • Acts as a passage for food only

    • What is located in the upper part of the nasopharynx?

  • Laryngeal prominence
  • Nasopharyngeal tonsil (adenoid) (correct)
  • Palatine tonsil
  • Eustachian tube

    • What is the effect of an enlarged adenoid?

    <p>Difficulty in breathing</p> Signup and view all the answers

    What is the function of the oropharynx?

    <p>Acts as a passage for food and air</p> Signup and view all the answers

    What is located in the lateral wall of the oropharynx?

    <p>Palatine tonsil</p> Signup and view all the answers

    How many cartilages make up the larynx?

    <p>9 cartilages</p> Signup and view all the answers

    What is the shape of the cricoid cartilage?

    <p>Shaped like a signet ring</p> Signup and view all the answers

    What is the primary function of nasal conchae in the nasal cavity?

    <p>To increase the surface area for olfaction</p> Signup and view all the answers

    What is the main reason for the presence of paranasal sinuses in the skull?

    <p>To decrease the weight of the skull</p> Signup and view all the answers

    Which paranasal sinus is present at birth?

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

    Where does the frontal sinus drain into?

    <p>The middle meatus</p> Signup and view all the answers

    What is the location of the sphenoidal sinus?

    <p>In the body of the sphenoid bone</p> Signup and view all the answers

    What is the function of the paranasal sinuses in terms of protection?

    <p>They act as air cushions for the brain</p> Signup and view all the answers

    What is the name of the condition characterized by inflammation of the sinuses due to retention of mucus secretion?

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

    What is the shape of the pharynx?

    <p>Funnel-shaped</p> Signup and view all the answers

    What forms the posterior sloping part of the nasal cavity?

    <p>Body of sphenoid</p> Signup and view all the answers

    What is the function of the vestibule in the nasal cavity?

    <p>To contain hair and prevent dust from entering</p> Signup and view all the answers

    What is the name of the bony structure that forms the medial wall of the nasal cavity?

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

    What is the term for the elevation on the lateral wall of the nasal cavity?

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

    What is the function of the respiratory mucosa in the nasal cavity?

    <p>To warm inspired air</p> Signup and view all the answers

    What is the term for the upper part of the nasal mucosa responsible for olfaction?

    <p>Olfactory mucosa</p> Signup and view all the answers

    What is the consequence of a deviated nasal septum and turbinates hypertrophy?

    <p>Difficulty in breathing</p> Signup and view all the answers

    What is the name of the bony structure that forms the floor of the nasal cavity?

    <p>Palatine process of maxilla</p> Signup and view all the answers

    What are the two parts of the external nose?

    <p>Upper bony part and lower cartilaginous part</p> Signup and view all the answers

    What is the function of the posterior nasal opening in the nasal cavity?

    <p>It opens posteriorly in the nasopharynx</p> Signup and view all the answers

    What is the name of the bony part that forms the middle horizontal part of the nasal cavity's roof?

    <p>Cribriform plate of ethmoid bone</p> Signup and view all the answers

    What is the name of the opening through which each nasal cavity opens on the face?

    <p>All of the above</p> Signup and view all the answers

    What separates the two nasal cavities?

    <p>Nasal septum</p> Signup and view all the answers

    What is the name of the bony part that forms the anterior sloping part of the nasal cavity's roof?

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

    What is the function of the nasal cavity?

    <p>It is not mentioned in the text</p> Signup and view all the answers

    What is the name of the structure that forms the lower part of the external nose?

    <p>Cartilaginous part</p> Signup and view all the answers

    What is the location of the cuneiform cartilages?

    <p>In the aryepiglottic folds</p> Signup and view all the answers

    What is the function of the vocal ligament?

    <p>It is important in voice production, controlling the stream of air passing through the rima glottidis</p> Signup and view all the answers

    What is the narrowest part of the laryngeal cavity?

    <p>The space between the vocal folds and the arytenoid cartilages</p> Signup and view all the answers

    What is the nerve supply of the cricothyroid muscle?

    <p>External laryngeal nerve</p> Signup and view all the answers

    What is the effect of a lesion of the recurrent laryngeal nerve?

    <p>All of the above</p> Signup and view all the answers

    What is laryngomalacia?

    <p>A congenital softening of the tissues of the larynx above the vocal cords</p> Signup and view all the answers

    What is the function of the lateral cricoarytenoid muscle?

    <p>It adducts the vocal folds</p> Signup and view all the answers

    What is the conus elasticus?

    <p>A membrane lining the larynx, including the vocal folds</p> Signup and view all the answers

    Study Notes

    Nasal Cavity

    • Posterior sloping part of the nasal cavity is formed by the body of the sphenoid bone
    • Floor of the nasal cavity is formed by the palatine process of the maxilla and the horizontal plate of the palatine bone
    • Medial wall of the nasal cavity is formed by the nasal septum, which consists of the septal cartilage, perpendicular plate of the ethmoid, and vomer
    • Lateral wall of the nasal cavity has three elevations: superior, middle, and inferior conchae, separated by three meatuses (superior, middle, and inferior)
    • The nasal mucosa is divided into three types: vestibule, respiratory mucosa, and olfactory mucosa

    Paranasal Sinuses

    • Paranasal sinuses are air-filled spaces in the skull bones surrounding the nose
    • Functions of paranasal sinuses:
      • Decrease the weight of the skull
      • Increase the resonance of the voice
      • Act as air cushions for the brain, eye, and pituitary gland
    • Types of paranasal sinuses:
      • Frontal sinus: present in the frontal bone, drains into the middle meatus
      • Maxillary sinus: present in the maxilla, the largest air sinus, opens at the middle meatus
      • Sphenoidal sinus: present in the body of the sphenoid bone, opens above the superior concha
      • Ethmoidal sinuses: three groups (anterior, middle, and posterior) of air-filled spaces in the ethmoid bone

    Pharynx

    • Pharynx is a funnel-shaped muscular tube about 12 cm long, extending from the base of the skull to the level of the 6th cervical vertebra (C6)
    • Divided into three parts: nasopharynx, oropharynx, and laryngopharynx
    • Functions of the pharynx:
      • Acts as a passage for air and food
      • Contains the nasopharyngeal tonsil (adenoid) in the nasopharynx

    Larynx

    • Larynx is a tube consisting of 9 cartilages (3 single and 3 paired) connected together by membranes and ligaments
    • Extends from the root of the tongue to the beginning of the trachea at the level of C6 vertebra
    • Functions of the larynx:
      • Passage of air to trachea and lungs
      • Production of voice by vocal cords
      • Reflex expulsion of foreign bodies
    • Laryngeal cartilages:
      • Thyroid: single hyaline cartilage, forms a median elevation called the laryngeal prominence (Adam's apple)
      • Cricoid: single hyaline cartilage, shaped like a signet ring
      • Epiglottis: single elastic cartilage, behind the root of the tongue, closes the laryngeal orifice during swallowing
      • Arytenoid: paired cartilages, shaped like pyramids

    Respiratory System

    • Components of the respiratory system:
      • Nose
      • Pharynx
      • Larynx
      • Trachea
      • Bronchial tree
      • Lungs

    Applied Anatomy

    • Deviated nasal septum and turbinate hypertrophy may cause difficulty in breathing
    • Sinusitis: inflammation of the sinuses due to retention of mucus secretion
    • Laryngitis: inflammation and swelling of the larynx
    • Laryngomalacia: congenital softening of the tissues of the larynx above the vocal cords
    • Lesion of the recurrent laryngeal nerve: may cause stridor, hoarseness of voice, and aphonia

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Upper Respiratory Air Ways PDF

    Description

    This quiz covers the different parts of the nasal cavity, including the body of sphenoid, palatine process of maxilla, and other surrounding bones and cartilages.

    More Like This

    Anatomy of the Nasal Cavity
    9 questions

    Anatomy of the Nasal Cavity

    ConciliatorySelkie avatar
    ConciliatorySelkie
    Anatomy of the Nasal Cavity Quiz
    18 questions

    Nasal Cavity Anatomy Quiz and Flashcards

    ZippyReal avatar
    ZippyReal
    Ethmoid Bone Anatomy
    7 questions

    Ethmoid Bone Anatomy

    StylishPeach4517 avatar
    StylishPeach4517
    Human Anatomy: Skull and Nasal Cavity
    37 questions

    Human Anatomy: Skull and Nasal Cavity

    DeliciousCoconutTree avatar
    DeliciousCoconutTree
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser