ENT Anatomy Flashcards
(23 cards)
Foramen magnum
(1) Cranial fossa
(2) Bone
(1) Posterior cranial fossa
(2) Occipital bone
Cribriform plate
(1) Cranial fossa
(2) Bone
(1) Anterior cranial fossa
(2) Ethmoid bone
Internal acoustic meatus
(1) Cranial fossa
(2) Bone
(1) Posterior cranial fossa
(2) Temporal bone
Foramen ovale
(1) Cranial fossa
(2) bone
(1) Middle cranial fossa
(2) Sphenoid bone
Jugular foramen
(1) Cranial fossa
(2) Bone
(1) Posterior cranial fossa
(2) Temporal & occipital bones
Superior orbital fissure
(1) Cranial fossa
(2) Bone
(1) Middle cranial fossa
(2) Sphenoid bone
Where is olfactory epithelium located?
Located on the roof of the nasal cavity, including the superior nasal concha and upper nasal septum
Where is the respiratory epithelium located?
Lines the rest of the nasal cavity, including the inferior and middle nasal conchae, the nasal floor, and the nasopharynx
Give the full name for respiratory epithelium
Pseudostratified ciliated columnar epithelium with goblet cells
Which paranasal sinuses drain into the nasal cavity through the semilunar hiatus?
- Frontal
- Maxillary
- Anterior ethmoidal sinuses
= drain via the semilunar hiatus
Where does the nasolacrimal duct drain into the nasal cavity?
inferior meatus
What are the functions of the paranasal sinuses?
Lighten the skull, humidify and warm air, enhance voice resonance, and produce mucus
Which element of the laryngeal skeleton is formed of elastic cartilage?
epiglottis
Define the borders of the oral cavity proper
The oral cavity proper is the space inside the teeth and gums, bounded by the teeth/lips in front and the oropharynx at the back
A 24-year-old patient presents to the emergency department with a laceration to the right anterior helix superior to the external acoustic meatus.
Which nerve would convey pain from this area?
Auriculotemporal nerve
= a branch of the mandibular nerve, CN V3
Earwax is produced by ? glands of the skin lining the external acoustic meatus
ceruminous
When having earwax removed, the posterior inferior aspect of the external acoustic meatus is scraped. Which nerve would convey the general sensation of the skin in this area?
Vagus nerve
Where does the oval window connect?
Connects the middle ear to the inner ear
= Specifically, it is the membrane-covered opening where the stapes (a middle ear bone) transmits vibrations into the cochlea of the inner ear
Which muscles adduct the vocal cords?
lateral cricoarytenoid muscles and arytenoid muscles
Which muscles widen the rim glottides?
Posterior cricoarytenoids
Which muscle abducts the vocal cord?
Posterior cricoarytenoid
The “Adam’s apple” is what type of cartilage?
Laryngeal prominence of the thyroid cartilage
What is the synovial joint associated with the thyroid cartilage?
Cricothyroid joint
