40 Questions
Which artery is responsible for the vascular supply to the nasal cavity?
Sphenopalatine artery
What is the primary function of the paranasal sinuses?
To resonate sounds of speech
Which cell type in the respiratory epithelium is responsible for secreting mucus onto the luminal surface?
Mucous goblet cells
Which nerve innervates the olfactory epithelium in the upper portion of the nose?
CN I (Olfactory nerve)
What is the common site of chronic epistaxis in the nasal cavity?
Kiesselbach's area
What is the significance of Larson's maneuver in airway assessment?
It helps in assessing thyromental distance
Which structure is part of the three divisions of the pharynx?
Soft palate
What is the function of Waldeyer’s tonsillar ring?
Protection against foreign particles entering the airways
Which structures are visible during direct laryngoscopy?
Epiglottis and arytenoid cartilages
What is the innervation of the structures of the airways and larynx?
Vagus nerve (CN X)
What is the distance of the trachea?
About 20 cm
What is the correct depth for an endotracheal tube in comparison to the trachea?
One-third the length of the trachea
Where is a tracheostomy performed in relation to the anatomy of the trachea?
Below the larynx
What is the purpose of conducting airways in the respiratory system?
Warming and moistening air
Which condition may reduce the mobility of the atlanto-occipital joint, affecting the sniffing position for laryngoscopy?
Diabetes
Which cartilage is the largest cartilage of the larynx?
Thyroid
What is the function of the ligaments in the larynx?
To hold the laryngeal cartilages together
During which process does the epiglottis cover the inlet to the larynx?
Swallowing
Which part of the adult upper airway is the narrowest?
Rima glottidis
What muscles are responsible for opening the rima glottidis widely into an inverted kite shape during a deep inhalation?
Posterior cricoarytenoid muscles
Which muscle constitutes the bulk of the tongue mass and protrudes the tongue?
Genioglossus
What is the division of the oropharynx that begins at the palatoglossal arch known as?
Fauces
Which nerve transmits taste sensations in the anterior 2/3 of the tongue?
Chorda tympani branch of CN VII
What muscle tenses and opens the nasopharynx, and is responsible for relaxing to allow the soft palate to occlude the airway?
Tensor Veli Palatini
Where is the lingual tonsils located?
Inferior surface connected to floor of mouth by lingual frenulum
Which layer of the pharynx is predominantly composed of respiratory epithelium?
Mucosal layer
Which cranial nerve predominantly innervates the oropharynx?
CN IX
Which structure is located in the posterior/superior part of the Waldeyer's tonsillar ring?
Pharyngeal tonsils
Which muscle is responsible for constricting the walls of the pharynx during swallowing?
Superior pharyngeal constrictor
What is the visibility score given when the faucial pillars, uvula, soft and hard palate are all visible during airway assessment using Mallampati score?
Class 1
Which muscle is responsible for elevating the larynx?
Thyrohyoid
What is the main function of the cricothyroid muscle?
Elongates the vocal cords
Injury to which nerve would lead to paralysis of ipsilateral vocal cord abductors?
Recurrent laryngeal nerve
What is the diameter of the trachea in adults?
~2 cm
What supplies blood to the trachea?
Superior thyroid artery
Which structure forms the lateral walls of the epiglottis?
Aryepiglottic folds
What nerve innervates the carina and true vocal cords?
Vagus nerve
Which bone's mastoid process is a landmark for Larson’s maneuver?
Temporal bone
What is a long-term surgical airway procedure called?
Tracheostomy
What is the emergency airway procedure used when a tracheostomy cannot be performed?
Cricothyrotomy
Test your knowledge of laryngeal assessment and cartilages with this quiz. Questions cover Cormack-Lehane Score, visibility of the glottic opening, laryngeal cartilages, and more.
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