Nerves of the nasal cavity

This tutorial explores the anatomy and nerve supply of the nasal cavity, highlighting its functions and clinical relevance. It covers the nasal cavity's role in air filtration, olfaction, and mucus production. The tutorial delves into the anatomy, including the nasal septum, bones, and foramina. It explains the nerve supply, focusing on the olfactory, ophthalmic, and maxillary nerves, and their branches. The tutorial concludes with clinical notes on potential nerve damage and its implications.

What is one of the primary functions of the nasal cavity?

• To circulate blood

• To digest food

• To warm, humidify, and filter air

• To produce saliva

Which bones form the nasal septum?

• Maxilla and palatine bones

• Temporal and occipital bones

• Vomer and ethmoid bones

• Frontal and parietal bones

What is the role of the olfactory nerve in the nasal cavity?

• To provide a sense of smell

• To produce mucus

• To regulate blood flow

• To control muscle movement

Which nerve is responsible for general sensory information in the nasal cavity?

• Optic nerve

• Ophthalmic nerve

• Olfactory nerve

• Facial nerve

What does the posterior ethmoidal nerve innervate?

• Anterior ethmoidal cells

• Posterior ethmoidal cells and sphenoid sinus

• Maxillary sinus

• Frontal sinus

Which nerve innervates the lateral wall of the nasal cavity?

• Nasopalatine nerve

• Optic nerve

• Posterior superior lateral nasal nerve

• Olfactory nerve

What is the function of the greater palatine nerve?

• To control eye movement

• To innervate the hard palate

• To sense taste

• To innervate the soft palate

What condition can result from damage to the olfactory bulb?

• Paralysis

• Deafness

• Blindness

• Anosmia

Which nerve passes through the sphenopalatine foramen?

• Olfactory nerve

• Optic nerve

• Nasopalatine nerve

• Facial nerve

What is the role of the lesser palatine nerve?

• To innervate the uvula and tonsil

• To control the tongue

• To sense taste

• To regulate blood pressure