Netter's MCQs Chapter 8: Muscles of Mastication Flashcards
All muscles of mastication originate in which location?
a: skull
b: mandible
c: zygomatic bone
d: temporalis bone
a: skull
Which cranial nerve innervates all muscles of mastication?
a: facial
b: maxillary
c: trigeminal
d: ophthalmic
c: trigeminal
The muscles of mastication all insert on which structure?
a: skull
b: mandible
c: zygomatic arch
d: maxillary tuberosity
b: mandible
Which surface of the masseter muscle is supplied by the masseteric artery?
a: deep
b: inferior
c: superior
d: superficial
a: deep
Which is NOT a main action of the masseter muscle?
a: elevate the mandible
b: retrude the mandible
c: protrude the mandible
d: move the mandible laterally
b: retrude the mandible
The superficial head of the masseter muscle is also described as the
a: deep part
b: lower part
c: larger part
d: smaller part
c: larger part
The temporalis muscle is NOT responsible for which action to the mandible?
a: elevation
b: retrusion
c: protrusion
d: lateral excursion
c: protrusion
The mandibular ramus is the insertion of each muscle, EXCEPT one. Which is the exception?
a: temporalis
b: lateral pterygoid
c: deep head of the masseter
d: superficial head of the masseter
b: lateral pterygoid
Which muscle of mastication keeps the mandible in rest position?
a: masseter
b: temporalis
c: lateral pterygoid
d: medial pterygoid
b: temporalis
Which muscle depresses the mandible?
a: masseter
b: temporalis
c: lateral pterygoid
d: medial pterygoid
c: lateral pterygoid
The origin of the upper head of the lateral pterygoid muscle is the
a: maxillary tuberosity
b: greater wing of the sphenoid
c: lateral surface of the pterygoid plate
d: medial surface of the pterygoid plate
b: greater wing of sphenoid
The pterygoid fovea is the insertion for which muscle?
a: deep head of the medial pterygoid
b: upper head of the lateral pterygoid
c: lower head of the lateral pteryoid
d: superficial head of the medial pterygoid
c: lower head of the lateral pterygoid
The zygomatic arch is the origin of which muscle?
a: masseter
b: temporalis
c: lateral pterygoid
d: medial pterygoid
a: masseter
Which part of the maxillary artery supplies the muscles of mastication?
a: pterygoid
b: mandibular
c: pterygopalatine
d: sphenomandibular
a: pterygoid
Which is NOT a branch of the 2nd part (pterygoid part) of the maxillary artery?
a: masseteric
b: pterygoid
c: transverse facial
d: anterior deep temporal
c: transverse facial