Parotid Gland And Temporal Region

Question 1

Parotid gland

Answer 1

Salivary gland- acini
Connective tissue capsule and dense fibrous capsule that extends as stylomandoibular ligament
Single duct below zygomatic arch

Question 2

Parotid duct

Answer 2

Pieces buccal fat pad and Buccinator to enter oral cavity at upper second molar
If masseter tensed becomes palpable

Question 3

Superficial temporal vessels and auriculotemporal nerve

Answer 3

Posterior auricle veins and artery
Facial vein and artery
Transverse facial artery

Question 4

Nerve supply to parotid gland

Answer 4

Parasympathetic motor supply form glossopharyngeal

Question 5

Muscles of mastication

Answer 5

Masseter 
Temporalis
Lateral pterygoid 
Medial pterygoid 
All mandibular division of trigeminal

Question 6

Movements of mandible

Answer 6

Elevation
Depression
Protrusion 
Retrusion
Lateral chewing

Question 7

Temporalis

Answer 7

Temporal fascia
Temporal fossa and fascia to coronoid process and anterior border of the ramus of the mandible
Anterior and superior fibres elevate mandible
Posterior fibres retract mandible

Question 8

Masseter

Answer 8

Zygomatic arch to lateral aspect of the ramus of the mandible
Elevates mandible
Masseteric nerve form anterior division of trigeminal

Question 9

Lateral pterygoid

Answer 9

Upper head- infratemporal surface of greater wing of sphenoid
Lower head- lateral surface of the lateral pterygoid plate
Inserts into neck of mandible and articulate disc
Pulls neck of mandible forwards with articular disc
Helps in lateral chewing movements with medial pterygoid
Nerve to lateral pterygoid- anterior divison of mandibular of trigeminal

Question 10

Medial pterygoid

Answer 10

Superficial head from the tubercle of the maxilla
Deep head from medial surface of lateral pterygoid plate
Inserts into medial surface of the angle of the mandible
Assists in elevation
Nerve to medial pterygoid, from mandibular of trigeminal

Question 11

Anterior divisions of mandibular division of trigeminal

Answer 11

Masseteric
Nerve to lateral pterygoid
2 deep temporal

Question 12

Posterior divisions of mandibular division of trigeminal

Answer 12

Auriculotemporal

Lingual

Question 13

Mandibular division of trigeminal

Answer 13

Anterior
Posterior
Nerve to Medial pterygoid

Question 14

External carotid artery

Answer 14

Ends in terminal branches= maxillary ands superficial temporal behind neck of mandible

Question 15

Posterior branches of external carotid artery

Answer 15

Occipital- crossed by hypoglossal nerve, passes under posterior belly of Digastric to post triganle
Posterior auricular- level of upper border of belly of Digastric
Ascending pharyngeal- ascends between internal carotid and pharynx

Question 16

Anterior branches of external carotid artery

Answer 16

Superior thyroid- runs with external laryngeal nerve branches to SCM and superior laryngeal artery
Lingual- passes deep to hypoglossus, crossed by hypoglossal nerve
Facial- passes deep to posterior belly of Digastric.

Question 17

Terminal branches of external carotid artery

Answer 17

Superficial temporal- divides into anterior and posterior branches that supply skin over the frontal and temporal regions
Maxillary- branches to muscles of mastication, tympani membrane, upper and lower teeth, palate, nasal cavity, nasopharynx and meninges