22 - Deep Face Laughty

Front 1

Anterior communication of infratemporal fossa and how?

Back 1

Orbit through infraorbital fossa

Front 2

Medial communication of infratemporal fossa and how?

Back 2

pterygopalatine fossa through pterygomaxillary fissure

Front 3

7 contents of infratemporal fossa?

Back 3

1) lateral & medial pterygoid muscles
2) maxillary artery & its branches
3) pterygoid plexus of veins
4) mandibular nerve
5) Otic ganglion
6) chorda tympani nerve
7) posterior superior alveolar nerves

Front 4

branches of mandibular nerve?

Back 4

motor nerves
buchcal nerve of V
lingual nerve
inferior alveolar nerve - gives nerve to mylohyoid
auriculotemporal nerve

Front 5

motor nerves from mandibular division?

Back 5

temporalis, masseter, medial & lateral pterygoid muscles, mylohyoid & anterior belly of digastric

Front 6

contents of buccal nerve of V?

Back 6

sensory only to skin of cheeks and mucosa of mouth

Front 7

contents of lingual nerve before submandibular ganglion?

Back 7

from mandibular nerve; sensory to ant. 2/3 of tongue and
preganglionic parasympathetic
taste fibers

Front 8

contents of chorda tympani nerve?

Back 8

preganglionic parasym
taste fibers

Front 9

ganglion of taste fibers?

Back 9

geniculate ganglion

Front 10

contents of CN7 before chorda tympani?

Back 10

motor
pregang. sensory
taste fibers

Front 11

content of CN7 after chorda tympani nerve?

Back 11

motor to posterior belly of digastric & stylohyoid

Front 12

path of CN7 and its branches?

Back 12

goes through internal auditory meatus with motor, pregang parasympathetic, & taste fibers
gives of chorda tympani and then continues as only motor through stylomastoid foramen as motor only
chorda tympani goes through petrotympanic fissure (with pregang parasym & taste) to join lingual nerve

Front 13

path of inferior alveolar nerve?

Back 13

after going through foramen ovale, it gives off nerve to mylohyoid and continues through mandibular foramen and mental foramen as sensory only

Front 14

components of CN9 through jugular foramen?

Back 14

sensory, motor, pregang parasympathetic, & taste

Front 15

components of tympanic nerve?

Back 15

pregang. parasympathetic & sensory

Front 16

path of tympanic nerve?

Back 16

comes from CN9 and goes through tympanic canal
gives sensory to tympanic cavity and continues as pregang parasym only as lesser petrosal nerve
enters foramen ovale and synapses at otic ganglion;
continues with auriculotemporal nerve as post gang para to parotid gland

Front 17

components of auriculotemporal nerve and where they come from?

Back 17

gen sensory (from mandibular division of CN V) & post gang parasympathetic (from otic ganglion)

Front 18

Origin, Insertion & action of masseter muscle?

Back 18

O: Medial and inferior parts of zygomatic arch
I: lateral surface of ramus and angle of mandible
action: close mouth

Front 19

Origin, Insertion, & action of temporalis?

Back 19

O: temporal fossa
I: coronoid process
A: closes mouth

Front 20

Origin, Insertion, Action of medial pterygoid muscle?

Back 20

O: medial side of pterygoid plate
I: medial surface of ramus and angle of mandible
A: closes the mouth

Front 21

Origin, Insertion, Action of lateral pterygoid muscle?

Back 21

O: greater wing of sphenoid & lateral surface of pterygoid plate
I: tempomandibular joint & condylar process
A: only muscle to open the mouth

Front 22

stylomandibular ligament?

Back 22

separates parotid gland from submandibular gland

Front 23

where does maxillary artery enter infratemporal fossa?

Back 23

deep to mandible

Front 24

first branch of maxillary artery & its path?

Back 24

middle meningeal artery that goes between 2 roots of auricuolotemporal nerve then through foramen spinosum

supplies dura mater

Front 25

path of accessory meningeal artery?

Back 25

passes through foramen ovale and suppliers dura and trigeminal ganglion

Front 26

how does maxillary artery leave inratemporal fossa?

Back 26

pterygomaxillary fissure

Front 27

position of mandibular nerve in infratemporal fossa?

Back 27

comes through foramen ovale; deep to lateral pterygoid & superficial to medial pterygoid

Front 28

where does the buccal nerve of 5 leave the mandibular nerve?

Back 28

between the two heads of the lateral pterygoid

Front 29

nerves superficial to medial pterygoid muscle?

Back 29

lingual nerve & inferior alveolar nerve

Front 30

maxillary artery enters infratemporal fossa between what two structures?

Back 30

mandible and sphenomandibular ligament