שיעור 3 Flashcards
(19 cards)
What is the infratemporal fossa?
A space that lies deep beneath the zygomatic arch and behind the maxilla, containing muscles of mastication and branches of the mandibular nerve (V3).
What is the function of the pterygopalatine fossa?
It functions as a neurovascular intersection connecting the maxillary nerve (V2) and ganglia to the nasal cavity, orbit, palate, and pharynx.
Fill in the blank: The infratemporal fossa is located _______ the zygomatic arch and _______ the maxilla.
deep beneath; behind
What is the lingual nerve?
A branch of V3 from trigeminal nerve, medial to the mandible
What type of innervation does the lingual nerve provide?
General sensory innervation
Which areas does the lingual nerve innervate?
Anterior two-thirds of the tongue and the floor of the mouth
Does the lingual nerve provide taste sensation?
No, it does not provide taste. chorda tympani is.
What nerve joins the lingual nerve for taste and salivation?
Chorda tympani (CN VII from facial nerve)
Fill in the blank: The lingual nerve is a branch of _______.
V3 from trigeminal nerve
What is the main artery of the deep face?
Maxillary artery
The maxillary artery supplies deep facial structures.
What is the maxillary artery a branch of?
External carotid artery
The external carotid artery supplies blood to the face and neck.
Where does the maxillary artery pass through?
Infratemporal fossa to the pterygopalatine fossa
These fossae are important anatomical spaces in the skull.
Middle meningeal artery
Branch of:
Enters:
Supplies:
Branch of: Maxillary artery
Enters: Foramen spinosum
Supplies: Dura mater
Maxillary sinus – Largest sinus. its true?
yes its maxxxxxxxx
Conchae purpuse is:
increase contact with air.
Where is the nasolacrimal duct located?
Found in the anterior part of the inferior meatus.
What does the superior meatus drain?
Drains posterior ethmoid cells
The superior meatus is a passage in the nasal cavity that specifically handles drainage from the posterior ethmoid sinus cells.
What sinuses drain into the middle meatus?
Frontal, maxillary, and anterior ethmoid sinuses via semilunar hiatus
The middle meatus is an important drainage pathway in the nasal cavity for several sinuses.
What does the inferior meatus receive?
Receives the nasolacrimal duct
The inferior meatus is located below the inferior turbinate and is the entry point for tears from the nasolacrimal duct.
