9 infratemporal fossa

Question 1

where is the infratemporal fossa?

Answer 1

region beneath base of skull and deep the ramus
communicates with temporal region and petrygopalatine fossa

Question 2

six boundries of infra temporal

Answer 2

sup temporal
ant post maxilla
post styloif process
inf angle of mandible
med petrygoid plate
lat ramus of mandible

Question 3

the ligament of infrate f is:

Answer 3

shenomandibular ligament extend from spine of sphenoid until the lingula of mandibular

Question 4

nervs of infratem:

Answer 4

1 v3 and branches
2 otic ganglion
3 chorda tympani *ear
4 posterior superior alveolar n

Question 5

artry and veins

Answer 5

a maxillary largest terminal branch of ECA
v pterygoid venous pexus max.vein

Question 6

lateral pterygoid muscle

Answer 6

has superior and inferior parts
innervation is v3 mand of trig

Question 7

what is the bilaterial action of lateral and medial pterygoid m?

Answer 7

lateral: move neck forword to upper and lower head
medial:elevates mandible
unilateral with med ptero rotate mandible

Question 8

**

what is the unilateral action for lateral and medial pterygoid m?

Answer 8

unilateral with med ptero rotate mandible to opposite side

Question 9

Medial pterygoid m

Answer 9

has superfacial and deep parts
innervation cnv3 *as lateral

Question 10

1 mandibular nerve v3

Answer 10

passes through foramin ovale
Main trunks:
M V3 n to medial pterygoid
S V3 meningeal n

Question 11

what is the v3 Anterior *smaller devision?
3m 1s

Answer 11

motor: 3 mastication muscles
sensory: buccle nerve

Question 12

what is the v3 Posterior *larger devision?
1m 3s

Answer 12

motor: n to mylohyoid
sensory: lingual n
infer alveolar n
auriculotemporal n

Question 13

2 what is otic ganglion *العقده

Answer 13

parasympathatic gangilion
beneath f ovale middil to mmn

Question 14

function of otic ganglion:

Answer 14

carries secretomotor fibers to parotid gland

preganglionic fibers pass through the otic become postgangilion fibers

Question 15

3 what is chorda tympani ?

swing like nerve

Answer 15

branch from facial n in middle ear leaves from there and join lingual n in infratempora fossa

Question 16

function of chroda tympani

Answer 16

1- recieves tast sensation from ant 2/3 of tongue
2- carries secretomoter fibers to submandubular and sublingual gland

Question 17

maxillary artry divided into three parts ?

15-5

Answer 17

1 mandibular
2 pterygoid
3 pterogopalatine

total branch15 branches each give 5

Question 18

1 mandibular part:

of maxillary artery

Answer 18

1 deep auriculaar
2 ant tympanic
3 middle maningial * spinosum
4 accessory maningeal
5 inferior alveolar *going down

Question 19

2 pterygoid part

has muscular branches

Answer 19

1 two deep temporal
2 ptrygoid
3 massseter
4 buccinator

Question 20

3 pterygopalatine

within its fossa

Answer 20

1 post sup alveolar a
2 infraorbiral
3 descending palatine
4 sphenopalatine nerve of nose
5 phyryngeal