Parotid and infratemporal regions

Question 1

Contents of Temporal Fossa

Answer 1

(1) . Temporalis Muscle
(2) Deep temporal Nerves and Arteries
(3) Branch of Superficial temporal Artery,
(4) Auriculotemporal nerve to overlying skin

Question 2

Name the Foramina of the Infratemporal Fossa

Answer 2

(1) Foramen Ovale
(2) Foramen Spinosum
(3) Mandibular Foramen
(4) Pterygomaxillary Fissure

Question 3

What passes thru the Foramen Ovale

Answer 3

V3 & Lesser Petrosal Nerve

Question 4

What passes thru the Foramen Spinosum

Answer 4

middle meningeal artery and nervous spinosus

Question 5

What passes thru the Mandibular Foramen

Answer 5

inferior alveolar nerve, artery, and vein

Question 6

What passes thru the Pterygomaxillary Fissure

Answer 6

maxillary artery and branches of maxillary nerve

Question 7

Contents of Infratemporal Fossa

Answer 7

(1) Med, lat. pterygoid muscles
(2) Branches of Mandibular nerve
(3) Branches of Maxiallary Artery
(4) Pterygoid Venous plexus

Question 8

Branches of Maxillary artery in the First part of it’s course

Answer 8

(1) Deep Auricular Artery
(2) Anterior Tympanic Artery
(3) Middle Meningeal Artery
(4) Accessory Meningeal Artery
(5) Inferior Alveolary (artery

Question 9

Branches of Maxillary artery in the SECOND part of it’s course

Answer 9

(1) Deep Temporal Artery
(2) Pterygoid Arteries
(3) Masseteric Artey
(4) Buccal Artery

Question 10

Branches of Maxillary artery in the THIRD part of it’s course

Answer 10

(1) Posterior Superior Alveolar Artery
(2) Descending Palatine Artery
(3) Artery of Pterygoid Canal
(4) Sphenopalatine Artery
(5) Infraorbital Artery

Question 11

Muscles of Mastication

Answer 11

(1) Masseter
(2) Temporalis
(3) Medial Pterygoid
(4) Lateral Pterygoid

Question 12

Masseter- O.I.A.N.

Answer 12

Origin- Zygomatic Arch
Insertion- Mandible (lateral side of ramus)
Action- Elevate mandible
Nerve- V3

Question 13

Temporalis- O.I.A.N.

Answer 13

Origin- Temporal Bone
Insertion- Mandible (coronoid process)
Action- Elevate, Retrude mandible
Nerve- V3

Question 14

Medial Pterygoid- O.I.A.N.

Answer 14

Origin- Lateral Pterygoid (medial side)
Insertion- Mandible (medial side of ramus)
Action- Elevate mandible
Nerve- V3

Question 15

Lateral Pterygoid-O.I.A.N.

Answer 15

Origin- (1) Spenoid bone (greater wing)
(2) Lateral Pterygoid plate (lat side)
Insertion- (1) Mandible (neck)
(2) articular disc of TMJ
Action- Depress, Protrude mandible
Nerve- V3