temporal fossa

Question 1

wedge-shaped space deep to the masseter muscle and underlying ramus of the mandible

Answer 1

infratemporal fossa

Question 2

above the sygomatic arch, communicates with infratermporal fossa through the gap between the zygomatic arch and the more medial surface of the skull

Answer 2

temporal fossa

Question 3

Boundaries of the temporal fossa

Answer 3

1. superior: superior and inferior temporal lines
2. anterior: frontal and sygomatic bones
3. lateral: sygomatic arch
4. inferior: infratermporal crest

Question 4

nerves found on the surface of the temporal fossa?

Answer 4

CN V- auricolotemporal nerve

CN VII temporal and zygomatic br.

Question 5

vasculature found in the termporal fossa?

Answer 5

superficial temporal artery and vein

Question 6

borders of the infratemporal fossa

Answer 6

1. superior : greater wing of sphenoid
2. inferior: medial pterygoid
3. anterior : maxilla
4. posterior: tympanic plate, mastoid, styloid processes
5. lateral: ramus of the mandible
6. medial: lateral pterygoid plate

Question 7

infratemporal fossa contains CN

Answer 7

• mandibular br. of V

- chorda tympani

Question 8

muscles found in the infratermporal fossa

Answer 8

• temporalis muscle

- pterygoid muscles (medial and latera)

Question 9

what else besides muscle and CN can you find i nthe infraatermporal fossa?

Answer 9

• otic ganglion
• maxillary arter
• ptyregoid venous plexus

Question 10

primary muscles of mastication

Answer 10

• temporalis
• masseter
• lateral and medial pterygoid

Question 11

masseter describe it and its innervation

Answer 11

two heads: superficial and deep

innervated by the masseteric br. of CN V3 through the mandibular notch

Question 12

temporalis describe it and its innervation

Answer 12

used for infection tracking

innervation: deep temporal br. of CN V3 the mandibular n

Question 13

medial pterygoid describe it and its innervation

Answer 13

attached to the medial surface of the lateral pterygoid and inserts at the pterygoid tuberosity on mandible

innervated by medial pterygoid br. of the CN V3

innervation

Question 14

lateral pterygoid it and its innervation

Answer 14

attached to the lateral pterygoid on lateral surface and attaches tocondylar process/ tempromandibular joint (it has two heads: a superior head and a inferior)

innervated by the lateral pterygoid br. of CN V3

Question 15

masticatory muscle sling

Answer 15

masseter and medial pterygoid

Question 16

Maxillary artery arises from the __________ and it is divided into three part ____, _____ and _____

Answer 16

arises from external carotid

3 parts: mandibular, pterygoid and pterygopalatine

Question 17

maxillary artery gives of 3 br.

Answer 17

• middle meningeal
• accessory meningeal
• inferior alveolar

Question 18

maxillary artery is superficial to ______ in 2/3 of time

Answer 18

lateral pterygoid muscle

Question 19

opthalmic arises from

Answer 19

internal carotid

Question 20

termination of the maxillary artery

Answer 20

sphenopalatine

Question 21

main passive support of the mandible

Answer 21

sphenomandibular ligament

Question 22

insertion and attachment of the sphenomandibular lig.

Answer 22

spine of the sphenoid to lingula of mandible

Question 23

most common dislocation of jaw

Answer 23

anterior