Exam 1 Week 2 Flashcards
temporal fossa, where is it and what is it bounded by
lateral side of the skull
by the temporal lines and zygomatic arches
Temporalis OINA
O: floor of the temporal fossa
I: coronoid process of the mandible
N: mandibular nerve (V3)
A: elevation and retraction of the mandible for mastication
Masseter OINA
O: zygomatic arch
I: lateral surface of the ramus and the angle of the mandible
N: mandibular nerve (V3)
A: elevation of the mandible
the masseter and the pterygoids live in the ___ fossa
infratemporal
what are the four muscles of mastication
temporalis, masseter, medial and lateral pterygoids
the masseter is ___ to the infratemporal fossa
lateral
which muscle fills the temporal fossa
temporalis
the facial artery is a branch off of the ___
external carotid
what nerve travels between the internal jugular vein and internal carotid artery
vagus nerve
what muscle partially covers the infratemporal fossa
the masseter
what are the boundaries of the infratemporal fossa
anteriorly by the mandible,
posteriorly by the condylar process of the mandible
medially by the lateral pterygoid
laterally by the ramus of the mandible
Lateral Pterygoid OINA
O: greater wing of the sphenoid and lateral pterygoid plate
I: neck of the mandible, and the TMJ disc.
N: mandibular nerve (V3)
A: protraction of the mandible and unilaterally moves it side to side
Medial Pterygoid OINA
O: lateral pterygoid plate and the maxilla
I: medial surface (on the inside) of of the angle of the mandible
N: mandibular nerve (V3)
A: elevates and protrudes mandible and unilaterally moves it side to side
the maxillary nerve goes through the foramen ___
foramen rotunda
the maxillary artery is a branch off of the ___ artery
external carotid artery
