Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
72 Cards in this Set
- Front
- Back
|
What runs through the parotid gland?
|
CN VII (facial)
|
|
|
What innervates the parotid gland?
|
CN IX (glossopharyngeal)
|
|
|
What are the four muscles of mastication?
|
Masseter, Temporalis, Lateral and Medial Pterygoids
|
|
|
What innervates the masseter and the temporalis muscles in the face?
|
CN V3
|
|
|
What is the blood supply to the masseter and temporalis?
|
Maxillary
|
|
|
What is the action of the masseter
|
closes and protrudes jaw
|
|
|
What is the action of the temporalis?
|
closes and retracts jaw
|
|
|
What are the deep muscles of mastication?
|
lateral and medial pterygoids
|
|
|
What does the medial pterygoid attach to?
|
mandible
(medial,mandible) |
|
|
What does the lateral pterygoid attach to?
|
joint capsule and articular disc
closes mouth |
|
|
What are branches of V3?
|
buccal
lingual inferior alveolar |
|
|
What are the contents of the infratemporal fossa?
|
Pterygoid muscles
Otic ganglion chorda tympani mandibular n (V3) and branches deep portion of parotid maxillary artery and branches pterygoid venous plexous posterior alveolar branches (V2) |
|
|
Where does the temporalis muscle attach?
|
coronoid process
|
|
|
Describe the path of the maxillary artery near the lateral pterygoid
|
Goes through the pterygomaxillary fissure to the pterygopalatine fossa (becomes the sphenopalatine artery)
|
|
|
What is a terminal branch of the external carotid artery?
|
maxillary artery
|
|
|
Where does the maxillary artery enter the fossa?
|
between the mandibular neck and the sphenomandibular ligament
|
|
|
Where does the right middle meningeal artery enter cranium? What is this artery a branch of?
|
enters the cranium through the foramen spinosum.
It is a branch of the 1st part of the maxillary artery |
|
|
What role does the otic ganglion play in the infratemporal fossa?
|
medial to the mandibular n (v3) and it conveys secretomotor fibers of CN IX to the parotid gland
|
|
|
What are the branches of V3?
|
buccal
lingual auriculotemporal inferior alveolar |
|
|
What role does the auriculotemporal branch have?
|
carries CN IX postganglionic secretomotor fibers from oticganglion to the parotid gland
|
|
|
What role does the lingual branch have?
|
lingual branch is a branch of the mandibular n (V3)
carries CNVII chordatympani to tongue |
|
|
Where is the otic ganglion located in the infratemporal foramen?
|
medial to the mandibular n (V3)
|
|
|
What is the general path of the glossopharyngeal nerve (CN IX)?
|
tympanic branch passes through jugular foramen
enters middle ear lesser petrosal nerve passes through foramen ovale to ITF synapes in otic ganglion and postganglionic fibers are conveyed to parotid gland by the auriculotemporal n(V3) |
|
|
What does the chorda tympani do?
|
unites facial nerve with lingual n (branch of v3)
carries preganglionic parasympathetics to submandibular ganglion carries taste fibers from anterior 2/3 of tongue |
|
|
What does the upper cavity of the TMJ do?
|
protrusion retrusion
|
|
|
What does the lower cavity of the TMJ do?
|
hinge action
|
|
|
What nerves are at risk with TMJ dislocation surgery?
|
facial and auriculotemporal
|
|
|
What nerve allows tears?
|
Facial n CN VII, it provides parasympathethic innervation to lacrimal gland
|
|
|
what goes through the supraoribital foramen (on the superficial face)?
|
CN V1
|
|
|
What goes through the infraorbital foramen on the superficial face?
|
CN V2
|
|
|
What goes through the mental foramen on the superficial face?
|
CN V3
|
|
|
What bone supplies some attachments for mastication muscles?
|
Sphenoid bone (medial and lateral plates)
|
|
|
What is the composition of SCALP?
|
Skin
Connective tissue Aponeurosis of Occipitofrontalis muscle Loose connective tissue Pericranium |
|
|
What clinical signifcance does the connective tissue have of the scalp?
|
bleeding
|
|
|
What clinical significance does the loose connective tissue have on the scalp?
|
infection
|
|
|
What clinical significance does the aponeurosis have on the scalp?
|
wound healing
|
|
|
What is the buccinator innervated by?
|
Facial nerve
-considered a muscle of facial expression, but also holds foood in mouth |
|
|
What are the motor innervation branches of the facial nerve (for facial expression)?
|
Temporal branches
Zygomatic branches Buccal branches Mandibular branches Cervical branches |
|
|
What is bells palsy caused by?
|
injury to facial nerve, or inflammation to sytlomastoid foramen (where n exits)
|
|
|
What role do the superior cervical ganglion play?
|
postganglionic sympathetic innervation to the sweat glands of the face
|
|
|
What is the sweat gland innervation of the face?
|
superior cervical ganglion,
postganglionic sympathetics |
|
|
What provides cutaneous innervation to the face?
|
CN V
|
|
|
What else does CN V sensory innervate?
|
mucosal surface of cornea, paranasal sinuses, nasal cavity
|
|
|
what are the branches of V1?
|
frontal n
nasociliary n lacrimal n |
|
|
What are the two branches of the frontal n off of V1?
|
supratrochlear n
and supraorbital n |
|
|
What are the two branches off of the nasociliary n off of V1?
|
infratrochlear n
and external nasal n |
|
|
How does V2 enter the ORBIT?
|
inferior orbital fissure,
(enters the pterygopalatine fossa by foramen rotundum) |
|
|
Describe taste to anterior 2/3 of tongue
|
facial nerve sends special sensory fibers thru chorda tympani to join lingual n (CNV3)
|
|
|
Describe tears
|
Facial nerve sneds parasympathetic motor fibers thru greater petrosal n to pterygopalatine ganglion to CNV2 to lacrimal n
|
|
|
Remember
|
Chorda tympani (taste) and greater petrosal nerve (tears) from CN VII, distributed by CNV
|
|
|
How is the parotid gland innervated?
|
CN IX (glossopharyngeal) to otic ganglion then to auriculotemporal nerve (V3)
|
|
|
If you perform surgery on the parotid gland, what may you injur and what may happen?
|
facial n
bells palsy |
|
|
What innervates the parotid sheath?
|
great auricular nerve (c2,c3)
|
|
|
What nerves does the cavernous sinus contain?
|
3, 4, 6, v1
|
|
|
What happens in CN III lesions?
|
Oculomotor
-ipsilateral eye turns laterally because the lateral rectus is innervated by CN6. (lateral strabismus) -ptosis -loss of pupillary light reflex |
|
|
V3 innervates....
|
muscles of mastication and mylohyoid and ant belly digastric
|
|
|
Does the abducens nerve go through the common tendinous ring?
|
yes
|
|
|
What nerves innervate the digastric muscle?
|
anterior belly-trigeminal (V3)
posterior belly-facial (VII) |
|
|
What innervates the scalp muscles and the stapedius?
|
Facial (VII)
|
|
|
What innervates the tensor vali palatini and tensor tympani?
|
V3
|
|
|
What are the preganglionic parasympathetics of the facial nerve
|
VII- nervus intermedius
chorda tympani |
|
|
Through the pterygopalantine ganglion, what does the facial nerve innervate?
|
nasal mucosa, lacrimal gland, hard and soft palate
|
|
|
What innervates the submandibular gland and sublingual?
|
facial (VII) through the submandibular ganglion (postganglionic)
|
|
|
What general sensory does the facial nerve have?
|
external ear, (ear lobe, mastoid process)
|
|
|
What is the motor component (muscle) of the glossopharyngeal n?
|
CN IX, stylopharyngeas m
|
|
|
What nerve is associated with the otic ganglion?
|
CN IX, glosspharyngeal
-goes through the tympanic plexus, lesser petrosal n, foramen ovale, otic ganglion, then ariculotemporal (V3) to parotid gland |
|
|
What is the carotid sinus nerve?
|
inferior glossopharyngeal ganglion
|
|
|
What is the general sensation of CN IX?
|
Posterior 1/3 tongue
Oropharynx Tympanic cavity External ear Mastoid air cells |
|
|
What nerve controls the gag reflex?
|
Glosspharyngeal n
|
|
|
What does the spinal accessory nerve ENTER?
|
foramen magnum
|
|
|
What nerve is the ciliary ganglion associated with?
|
CN III
|
|
|
What innervates 3/4 extrinsic tongue muscles?
|
CN XII, hypoglossal
except palatoglossus (CN X) |
