Lecture 21

Question 1

What is the gap between the 2 Pterygoid plates called?

Answer 1

Pterygomaxillary fissure

Question 2

What foramen is in the Medial wall and what is it formed by?

Answer 2

Sphenopalatine foramen
- Formed by perpendicular plate of palatine bone

Question 3

What foramen is in the Posterior wall and what is it formed by?

Answer 3

Foramen rotundum
- Formed by the two pterygoid plates

Question 4

Where does the sphenopalatine foramen lead to?

Answer 4

Into the nasal cavity

Question 5

Where does the Foramen rotundum lead to?

Answer 5

Into the MCF

Question 6

What does the Pterygopalatine fossa contain?

Answer 6

• Maxillary nerve
• Pterygopalatine ganglion
• Terminal part of the maxillary artery

Question 7

Where does the Maxillary nerve enter through?

Answer 7

Foramen rotundum

Question 8

How does the Maxillary nerve enter the orbit?

Answer 8

Through the inferior orbital fissure, where it known as the infraorbital nerve

Question 8

What are the Maxillary nerve branches attached to?

Answer 8

Pterygopalatine ganglion by 2 ganglionic branches

Question 9

What do the Posterior Superior Alveolar nerves supply?

Answer 9

• The upper molar teeth
• The buccal gingiva
• The lining of maxillary sinus

Question 10

What is given off anteriorly?

Answer 10

The posterior superior alveolar nerves

Question 11

What does the Maxillary nerve give off and where?

Answer 11

Just before it enters the infraorbital fissure, it gives off the zygomatic nerve

Question 12

What is the function of the Pterygopalatine ganglion?

Answer 12

A relay station for parasympathetic secretomotor fibres derived from facial nerve

Question 13

How does it reach the ganglion?

Answer 13

Via the nerve of the pterygoid canal

Question 14

What do the post ganglionic fibres supply?

Answer 14

The lacrimal gland & glands of mucous membranes in the region

Question 15

List the nerves of the Pterygopalatine Fossa

Answer 15

• Greater Palatine nerve
• Lesser Palatine nerve
• Nasopalatine nerve
• Nasal nerves
• Pharyngeal nerve

Question 16

Describe the route of the Greater Palatine nerve

Answer 16

Descends through the palatine canal & emerges through the greater palatine foramen

Question 17

What does the Greater Palatine nerve supply?

Answer 17

The Hard Palate

Question 18

Describe the route of the Lesser Palatine nerve

Answer 18

Descends through the palatine canal & emerges through the lesser palatine foramen

Question 19

What does the Lesser Palatine nerve supply?

Answer 19

Sensory to the soft palate

Question 20

Describe the route of the Nasopalatine nerve

Answer 20

Runs through the sphenopalatine foramen onto the nasal septum & through the incisive canal

Question 21

What does the Nasopalatine nerve supply?

Answer 21

Anterior part of the hard palate

Question 22

What do the Nasal nerves supply and leave through?

Answer 22

• Supplies lateral nasal wall & nasal septum
• Leaves through the sphenopalatine foramen

Question 23

What does the Pharyngeal nerve supply and leave through?

Answer 23

• Supplies the mucous membrane of the nasopharynx
• Leaves through the posterior aspect of the ganglion

Question 24

Where do the Submental nodes drain into?

Answer 24

The **Submandibular group** and **juguloomohyoid node**

Question 25

Where do the Submandibular nodes empty into?

Answer 25

**Deep cervical nodes**

Question 26

Where does the Soft Palate drain into?

Answer 26

Retropharyngeal

Question 27

Where does the Hard Palate drain into?

Answer 27

**Deep cervical nodes**