External Nose Anatomy Quiz

Which of the following is not a part of the external nose?

• Septal cartilage

• Nasal bone

• Philtrum

• Lateral cartilage

Which bones contribute to the formation of the floor of the nasal cavity?

• Nasal, frontal, sphenoid, and ethmoid bones

• Superior, middle, and inferior nasal conchae

• Maxilla and palatine bones

• Perpendicular plate of the ethmoid bone, vomer bone, and septal cartilage

What is the composition of the medial wall (nasal septum) of the nasal cavity?

• Maxilla, ethmoid, sphenoid, and palatine bones

• Superior, middle, and inferior nasal conchae

• Nasal, frontal, sphenoid, and ethmoid bones

• Perpendicular plate of the ethmoid bone, vomer bone, and the septal cartilage

Which artery is not part of the blood supply to the nasal cavity?

• Anterior ethmoid artery

• Posterior ethmoid artery

• Sphenopalatine artery

• Inferior alveolar artery

What is the name of the plexus on the anteroinferior nasal septum?

• Kiesselbach's plexus

• Circle of Willis

• Batson's plexus

• Woodruff plexus

What is the function of CN I (Olfactory) in the innervation of the nasal cavity?

• Sensory to medial/lateral anterior nose

• Visceral motor, parasympathetic innervation to nasal glands in mucosa

• Special sensory for smell

• Some sympathetic fibers involved in regulating blood flow in the nasal mucosa

Which cranial nerve provides sensory innervation to most of the nasal cavity?

• CN I (Olfactory)

• CN V (Trigeminal) - V1 (ophthalmic)

• CN V (Trigeminal) - V2 (maxillary)

• CN VII (Facial)

What type of innervation does CN VII (Facial) provide to the nasal cavity?

• Special sensory for smell

• Sensory to medial/lateral anterior nose

• Visceral motor, parasympathetic innervation to nasal glands in mucosa

• Some sympathetic fibers involved in regulating blood flow in the nasal mucosa

Into which area do the Ethmoid Sinuses drain?

• Middle meatus

• Sphenoethmoidal recess

• Middle and superior meatuses

• Superior meatus

The posterior part of the nasal cavity recieves its blood supply primarily from the:

• Angular artery

• Anterior ethmoid artery

• Internal carotid artery

• Facial artery

• Sphenopalatine artery