tmj and mandibular nerve

Question 1

ARTICULAR surfaces upper and lower of tmj

Answer 1

upper- articular tubercle of
- anterior part of mandibular fossa
-posterior non articular part of tympanic plate
lower- head of the mandible

Question 2

ligaments of tmj

Answer 2

fibrous capsule, lateral temporomandibular ligament, sphenomandibular and stylomandibular

Question 3

fibrous capsule

Answer 3

attached upwards to articular tubercle and below to the neck of the mandibile. it is lose above the intraacrticular disc and tight below

Question 4

lateral ligament

Answer 4

strengthens and tightens the lateral part of capsular ligament
attached upwards to articular tubrcle and blow to the posterolateral part of neck of the mandible

Question 5

sphenomandibular ligament

Answer 5

accessory ligament

attached to the spine of sphenoid and to the lingula of mandibular foramen

Question 6

sphenomandibular ligament is related laterally and medially to

Answer 6

laterally- lateral pterygoid muscle
maxillary artery and auricotemporal nerve
medially- chorda tympani
wall of pharynx

Question 7

stylomandibular ligament

Answer 7

represents the thickened part of deep cervical fascia which seperates the parotid gland and submanibular gland
atatched above to lateral part of styloid process and below to poasterior border of the ramus of the mandible

Question 8

articular disc is composed of

Answer 8

anterior extensio, anterior thick band, intermediate zone, posterior thick band and bilaminar disk containing venous plexus

Question 9

relations of tmj

lateral

Answer 9

skin and fascia
parotid gland
temporal branches of facial nerve

Question 10

relations of tmj

medial

Answer 10

MS CAT
middle meningeal artery 
styloid process
chorda tympani 
aurcotemporal nerve 
tympanic plate separates the joint from the internal carotid artery

Question 11

relations of tmj

anterior

Answer 11

lateral pterygoid muscle

masseteric nerve and vessels

Question 12

relations of tmj

posterior

Answer 12

superficial temporal
partodid gland seperates the joint from external acoustic meautus
chorda tympani

Question 13

relations of tmj

superior

Answer 13

middle cranial fossa

middle menningeal vessels

Question 14

relations of tmj

inferior

Answer 14

maxillary artery

Question 15

blood supply of tmj and nerve supply

Answer 15

branches of maxillary artery (deep auricular) and branches of superficial temporal
auricotemporal nerve and masseteric nerve

Question 16

Depression is brought by

Answer 16

lateral pterygoid with gemiohyoid mylohyoid and diagastric

Question 17

elevation is Brought by

Answer 17

masseter, anterior vertical, middle oblique fibers of temporalis and medial pterygoid on both sides

Question 18

Protrusion is brought by

Answer 18

medial and lateral pterygoid and superficial oblique fibers of masseter

Question 19

REtraction is brought by

Answer 19

posterior horizontal of temporalis and deep vertical of masseter

Question 20

Mandibular nerve what is?

Answer 20

Branch of trigeminal nerve n nerve of First brachial arch

Question 21

Mandibular nerve course

Answer 21

begins in the middle cranial fossa.
2 roots sensory and motor
Leaves through formsnen ovale ans divides into small anterior trunk and large posterior trunk

Question 22

Branches from main trunk of mandibular nedve

Answer 22

nerve to medial pterygoid

Meningeal branch

Question 23

Branches from anterior trunk of mandibular nerve

Answer 23

Sensory root to buccal

Motor root to masseteric, deep temporal and lateral pterygoid

Question 24

Branches from posteriori truck of mandibular nerve

Answer 24

Auricotemporal
Inferior alveolar
Lingual

Question 25

Meningeal branch

Answer 25

Enters the skull through foramen spinosam | Supplies dura matter of middle cranial fossa

Question 26

Nerve to medial pterygoid

Answer 26

supplied medial pterygoid and gives motor root to tensor tympani, tensor veli palatini

Question 27

Buccal nerve

Answer 27

only sensory root . Supplies skin of cheek, mucous membrane related to buccinator and labial aspect of gums of molar and premolar teeth

Question 28

Masseteric

Answer 28

goes through mandibular notch supplied masseter and tmj

Question 29

Deep temporal

Answer 29

2 ant and post and supply deep surface of temporalis

Question 30

Erve to lateral pterygoid

Answer 30

supplied deep surface of the muscle

Question 31

Auricotemporal nerve

Answer 31

auricle part supplies skin of tragus upper part of pinna external acoustic meatus and tympanic membrane Temporal part supplies the skin of temp,e Also supplies parotid gland and tmj

Question 32

lingual nerve

Answer 32

sensory to anterior 2/3 of tongue and floor of the mouth and chorda tympani is secretomotor supply to submandibular and sublingual glands and gustatory to ant2/3rd of the tongue supplied by lingual nerve

Question 33

Inferior alveolar nerve

Answer 33

Larger terminal branch of mandibular never enters the mandibular foramen through mandibular canal

Question 34

Divisions of IA nerve

Answer 34

mylohyoid goes through mylohyoid grove and supplies the mylohyoid mucked and sent belly of diagastric Branch to lower gum and teeth Mental branch through mental foramen that supplies skin of skin and mucous membrane of lower lip. Incisive branch that supplies the labial aspect of gums of canines and incisors

Question 35

terminal branch of mandibular nerve

Answer 35

inferior alveolar nerve and buccal nerve

Question 36

cancer of the tongue is felt by (reffered pain)

Answer 36

auricotemporal nerve | as lingual and auricotemporal nerve both are a branch of mandibular nerve

Question 37

during wisdom tooth what nerve should be taken care of

Answer 37

lingual nerve

Question 38

paralysis of muscles of mastication, parasthesia of mandibile, tongue temporal region is caused by

Answer 38

lesion in foramen ovale

Question 39

loss of jaw jerk reflex is caused by

Answer 39

mandibular nerve

Question 40

extracting mandibular teeth u give anesthesia t what nerve

Answer 40

inferior alveolar nerve before it enters the mandibular canal

Question 41

fracture to mandible can cause damage to what nerve

Answer 41

inferior alveolar nerve

Question 42

injury to spine of sphenoid what 2 nerves are affected

Answer 42

chorda tympani and auricotemporal nerve