INFRATEMPORAL AND PTERYGOPALATINE FOSSA

Question 1

Medial wall of the infra temporal fossa

Answer 1

Lateral plate of the pterygoid process of the sphenoid

Question 2

Lateral wall of the infra temporal fossa

Answer 2

Medial surface of the ramus of the mandible

Question 3

Anterior wall of the infra temporal fossa

Answer 3

Posterior surface of the maxilla

Question 4

Roof of the infra temporal fossa

Answer 4

Formed by the inferior surface of the greater wing of the sphenoid and temporal bone.

Question 5

What are the two clinical relevance aspects of the infratemporal and pterygopalatine fossa

Answer 5

Posterior epitaxis and greater palatine nerve block

Question 6

What forms the door to the pterygopalatine fossa

Answer 6

The lateral pterygoid plate of the sphenoid bone

Question 7

What forms the TMJ

Answer 7

Condylar part of the manidble and mandibular fossa

Question 8

What ligaments stabalise the TMJ

Answer 8

Lateral ligament, sphenomandibular ligament, stylomandibular ligament

Question 9

What kind of joint is the TMJ

Answer 9

Atypical synovial joint- disc within joint capsule

Question 10

Muscles of mastication

Answer 10

Lateral and medial pterygoid, masseter, temporalis

Question 11

What muscles are in charge of elevating the jaw

Answer 11

temporalis, masseter and medial pterygoid

Question 12

what muscles protrude the jaw

Answer 12

lateral and medial pterygoid

Question 13

what muscles retract the jaw

Answer 13

temporalis, masseter, geniohyiod and digastric

Question 14

what muscles depress the jaw

Answer 14

gravity, geniohyoid, mylohyoid, digastric

Question 15

what nerve innervates the muscles of mastication

Answer 15

mandibular v three

Question 16

lateral wall of itf

Answer 16

lateral ramus of the mandible

Question 17

roof of itf

Answer 17

temporal bone and sphenoid bone

Question 18

medial wall of itf

Answer 18

lateral pterygoid plate of the sphenoid

Question 19

anterior wall of itf

Answer 19

posterior surface of the maxilla

Question 20

posterior wall of itf

Answer 20

carotid sheath

Question 21

floor of itf

Answer 21

medial pterygoid muscle

Question 22

What are the contents of the itf

Answer 22

pterygoid muscles, sphenomandibular ligament, middle menagial artery, inferior alveloar artery, mandibular nerve, pterygoid plexus

Question 23

two branches of the maxillary artery we need to know

Answer 23

middle menangial, inferior alveolar

Question 24

what are the branches of the posterior trunk of the mandibular nerve

Answer 24

auricular temporal nerve, lingual nerve, and chorda tympani, inferior alveolar nerve… incisive nerve and mental nerve

Question 25

what gives sensation to the anterior two thirds of the tongue

Answer 25

lingual nerve and chorda tympani

Question 26

what nerve gives parasympathetic supply to the parotid gland

Answer 26

lesser petrosal via auricular temporal

Question 27

what are the openings into the pterygoidpalatine fossa we need to know about

Answer 27

foramen rontundum, inferior orbital fissure, sphenopalatine foramen, nasal cavity

Question 28

where does posterior epitaxis come

Answer 28

sphenopalatine artery

Question 29

what neuro structure in pterygoid palatine fossa

Answer 29

pteryopalatine ganglion–>hayfever ganglion–> parasympathetic from greater petrosal