Nose and Paranasal Sinuses

Question 1

Describe the structure of the nasal septum

Answer 1

Septal cartilage, Ethmoid bone, and the vomer

Question 2

Blood supply to the nose

Answer 2

Anterior and posterior ethmoidal, off of the opthalmic. Sphenopalatine, off of the maxillary. Lateral nasal, off of the facial.

Question 3

Describe Little’s area

Answer 3

Anastomoses on the medial wall of the nose

Question 4

Venous drainage of the nasal cavity

Answer 4

Sphenopalatine, Facial, and Opthalmic veins

Question 5

Venous drainage of the external nose

Answer 5

Facial vein

Question 6

Path of drainage of the frontal sinuses

Answer 6

Into nasal cavity via the frontonasal duct

Question 7

Path of drainage of the ethmoidal sinuses

Answer 7

Into the middle and superior meatuses

Question 8

Path of drainage of the sphenoid sinuses

Answer 8

Open into the roof of the nasal cavity

Question 9

Path of drainage of the maxillary sinuses

Answer 9

Against gravity through the semi-lunar hiatus

Question 10

Consequences of nasal fracture

Answer 10

Epistaxis, Deformity, Septal haematoma

Question 11

Define rhinitis

Answer 11

Inflammation of the nasal mucosa

Question 12

Presentation of sinusitis

Answer 12

Head and facial pain worse when leaning forward or lying down, Nasal dicharge

Question 13

Spread of infection from sinusitis

Answer 13

Anterior cranial fossa through the cribiform plate, Middle ear via the eustachian tube