Nasal cavity

Question 1

Vascular Supply of the Nose

Answer 1

1. Nasal branches from Ophthalmic a.
2. Nasal branch from Maxillary a.
3. Facial a.

Question 2

Nerve Supply of the Nose

Answer 2

1. Infratrochlear n.
2. Ophthalmic division of the trigeminal n.
3. Maxillary division of the trigeminal n.
4. Infraorbital n.
5. Nasal branch of the infraorbital n.
6. External nasal n.

Question 3

Identify 8

Answer 3

8. Perpendicular plate of palatine

Question 4

Concha of the Nasal Cavity

Answer 4

1. Sphenoethmoid recess
2. Superior nasal concha
3. Superior nasal meatus
4. Middle nasal concha
5. Middle nasal meatus
6. Inferior nasal concha
7. Inferior nasal meatus

Question 5

Concha of the Nasal Cavity

Answer 5

8. Ethmoidal bulla
9. Hiatus semilunaris
10. Opening of nasolacrimal duct
11. Opening of maxillary sinus

Question 6

Arterial Supply of the Nasal Cavity

Answer 6

1. Sphenopalatine a. (Ophthalmic a.)
2. Posterior ethmoid a. (Ophthalmic a.)
3. Anterior ethmoid a. (3rd part of maxillary a.)
4. Greater palatine a. (3rd part of maxillary a.)
5. Septal branch of superior labral a. (facial)

Question 7

Sensory Innervation of the Nasal Cavity

Answer 7

1. External nasal branches of anterior ethmoid n.
2. Lateral internal nasal branch of anterior ethmoid n.
3. Medial internal nasal branch of anterior ethmoid n

Question 8

Sensory Innervation of the Nasal Cavity

Answer 8

1. Nasopalatine n. (Pterygopalatine ganglion)
2. Pterygopalatine ganglion
3. Posterior superior lateral nasal n. (Pterygopalatine ganglion)
4. Posterior inferior lateral nasal n. (Pterygopalatine ganglion)
5. Greater palatine n. (Pterygopalatine ganglion)

Question 9

Answer 9

1. Frontal sinus
2. Ethmoid sinuses
3. Maxillary sinus

Question 10

Answer 10

1. Frontal sinus
2. Ethmoid sinuses
3. Maxillary sinus
4. Sphenoid sinus

Question 11

Vascular Supply of the Frontal Sinuses (give answers first, then look at picture)

Answer 11

• *1. Supraorbital a.**
• *2. Supratrochlear a.**
  3. Frontal sinus
  4. Lacrimal a.
  5. Optic n.
  6. Posterior ethmoid a.
• *7. Anterior ethmoid a.**

(arteries in bold letter supply frontal sinuses)

Question 12

Nerve Supply of the Frontal Sinuses (give answers first, then look at picture)

Answer 12

• *1. Supraorbital n.**
• *2. Supratrochlear n.**
  3. Frontal sinus
  4. Lacrimal n.
  5. Frontal n.
  6. Nasociliary n.
  7. Posterior ethmoid n.

8. Anterior ethmoid n.

Question 13

Vascular Supply of the Ethmoid Sinuses

(give answers first, then look at picture)

Answer 13

• *1. Anterior ethmoid a.**
• *2. Posterior ethmoid a.**
  3. Sphenopalatine a.
• *4. Posterior lateral nasal a.**

Question 14

Nerve Supply of the Ethmoid Sinuses

(give answers first, then look at picture)

Answer 14

1. Anterior ethmoid n.
2. Posterior ethmoid n.
3. Pterygopalatine ganglion
4. Posterior lateral superior nasal n.
5. Lesser palatine n.
6. Greater palatine n.
7. Posterior lateral inferior nasal n.

Question 15

Vascular Supply of the Maxillary Sinuses

Answer 15

1. Maxillary a.
2. Infraorbital a.
3. Posterior superior alveolar a.
4. Middle superior alveolar a.
5. Anterior superior alveolar a.

Question 16

Nerve Supply of the Maxillary Sinuses

Answer 16

1. Maxillary n.
2. Posterior superior alveolar n.
3. Infraorbital n.
4. Middle superior alveolar n.
5. Anterior superior alveolar n

Question 17

Vascular Supply of the Sphenoid Sinuses

Answer 17

1. Posterior ethmoid a.
2. Sphenopalatine a.
3. Posterior lateral nasal a.

Question 18

Nerve Supply of the Sphenoid Sinuses

Answer 18

1. Frontal sinus
2. Ethmoid sinus
3. Posterior ethmoid n.
4. Pterygopalatine ganglion
5. Orbital branch from pterygopalatine ganglion
6. Nerve of the pterygoid canal
7. Nasopalatine n.
8. Posterior lateral superior nasal n.
9. Lesser palatine n.
10. Greater palatine n.