QUIZ 2
1) The _________ is the place of insertion for the temporalis muscle
A- mastoid process
1- On temporal bone
B- Condylar process
1- articulating process of mandible.
C- Coronoid process
1- also located on mandible.
D- Acromion process
1- on shoulder.
2) The middle meningeal artery passes though the __________
A- Foramen Ovale
1- accessory meningeal artery – passes through the foramen ovale and
supplies dura and trigeminal ganglion
.
Mandibular division of the trigeminal nerve leaves the middle cranial fossa to
enter the infratemporal fossa through the foramen ovale
B- Foramen Spinosum
C- Mandibular foramen
inferior alveolar artery – enters the mandible through the mandibular
foramen and supplies the lower teeth
D- Foramen rotundum
Where the maxillary nerve passes through (V2). It innervates the maxillary teeth,
sinus, gingival, skin of face and temple, lower eyelid, and the mucous membrane of
the hard palate, soft palate, pharynx and nose.
3) Which of the following muscles can open the mouth?
A. Lateral pterygoid
B Medial pterygoid
medial pterygoid muscle
1. origin: medial surface of lateral pterygoid plate & tuberosity of maxilla
2. insertion: on the medial surface of the ramus and angle of mandible
3. closes the mouth
B.
C.
D.
E.
F.
Masseter
superficially placed
origin: the zygomatic arch and bone
insertion: the lateral surface of ramus and angle of the mandible
closes the mouth
G. temporalis
1. origin: the temporal fossa and stout temporalis fascia
2. insertion: apex & anterior part of the coronoid process of the mandible
3. closes the mouth
4) Which of the following has preganglionic parasympathetic nerves to the otic
ganglion?
A- Chorda tympanireceives the chorda tympani nerve containing preganglionic
parasympathetic fibers and taste fibers for the anterior two-thirds
of the tongue.
B- Greater petrosal nerve
C- Auriculotemporal nervearises by 1 to 4 roots (50% one root): if there are two roots, they will encircle the
middle meningeal artery (actually they are upper and lower roots)
receives postganglionic parasympathetic fibers from the otic ganglion
for the parotid gland (autonomic to gland)
a. auriculotemporal nerve is sensory to skin in front of the ear and scalp
D- Lesser petrosal nerve
i.
preganglionic fibers (lesser petrosal nerve) to the otic ganglion exit
5) The muscles of mastication are innervated by the _________
A- auriculotemporal nerve- (See above)
B- lingual nerve
receives the chorda tympani nerve containing preganglionic
parasympathetic fibers and taste fibers for the anterior two-thirds
of the tongue
sensory cell bodies for taste to anterior 2/3 of tongue are in the
geniculate ganglion
C- inferior alveolar nerve
a. enters the mandibular foramen after giving off the nerve to the
mylohyoid, which gives off a branch to the anterior belly of the
digastric muscle
b. sensory to the
(1) lower teeth
(2) skin on the chin by the mental nerve
E- motor nerves associated with V3
6) The_______ is the layer of spongy bone between the inner and outer tables of the
calvaria
A- Sella turcica
The pituitary sits here
B- Diploe
C- Petrous layer
D- Arachnoid granulation
arachnoid granulations - project into the dural sinuses to return
cerebrospinal fluid to the blood
7) The straight sinus drains directly into the_______
A- Cavernous sinuses
(1) lies on either side of the body of the sphenoid bone (sella turcica)
(2) formed by dura on all sides (periosteal and meningeal)
(a) trabeculae from each layer cross the space giving it a cavernous
appearance
(3) extends from the petrous apex of the temporal bone posteriorly to the
superior orbital fissure anteriorly
(4) contents of the cavernous sinus and typical arrangement of its
contents
(a) oculomotor nerve (CN3) - superiorly in the lateral wall
(b) trochlear nerve (CN4) - next one down in the lateral wall
(c) ophthalmic nerve (CN5 / V1) - below trochlear n. in the lateral
wall
(d) maxillary nerve ( CN5 / V2) - lowest nerve in the lateral wall
(e) internal carotid artery - enters sinus after passing over the
foramen
lacerum and it is medial to the above mentioned nerves
(f) abducens nerve (CN6) - passes in close relation lateral to the
internal carotid artery
(g) drains the superior ophthalmic veins, cerebral veins, and
sphenoparietal veins
(h) it drains into the superior and inferior petrosal sinus
(i) communicates with the pterygoid plexus of the infratemporal foss
B- Jugular foramen
C- sigmoid sinus
connect the anterior end of the transverse sinuses
with the internal jugular vein
E- confluens of the sinuses
8)- The_________ is situated between the cerebral hemispheres
A- falx cerebelli
between cerebellar hemispheres
B- diaphragma sellae
-
forms roof of sella turcica
C- falx cerebri
D- tentorium cerebelli
-
separates occipital lobes of cerebrum from cerebellum
9) The thalamus is part of the brain called the ___________
A- diencephalon
B- mesencephalon
(mid-brain) - gives the origin to oculomotor (CN3)
and trochlear nerves (CN4)
C- metencephalon
consists of the pons and cerebellum
a. pons lies on the clivus and gives origin to the trigeminal nerve (CN5)
b. the pontomedullary junction is the location of the abducens (CN6),
facial (CN7), and vestibulocochlear (CN8) nerves
D- myelencephalon
10) The superior cerebellar arteries come off of the__________
A- vertebral arteries
. gives off branches as they enter the cranial cavity through the
foramen magnum
b. vessels from both sides join to form the basilar artery on the front
of the pons
c. branches
(1) posterior spinal arteries - descend to supply the dorsal side of
the spinal cord
(2) anterior spinal arteries - join and descend to supply the
ventral surface of the spinal cord as a single artery
(3) posterior inferior cerebellar arteries - supply the cerebellum
B- basilar artery
C- middle cerebral arteries
makes up the circle of willis
D- anterior cerebral arteries
makes up circle of willis