Nasal Cavity: Accessory Stuctures

Question 1

What is the special sensation nerve innervation for the nasal cavity?

Answer 1

Olfactory Nerve (CN I)

Question 2

What is the general sensory innervation for the nasal cavity?

Answer 2

Branches of the Maxillary and Opthalmic branches of the Trigeminal Nerve (CN V)

Question 3

What is the atuonomic innervation for the nasal cavity?

Answer 3

Both sympathetic and parasympathetic innervation come from the ptarygopalatine ganglion

Question 4

At what rate do people over the age of 50 lose their olfactory sensation?

Answer 4

About 1% per year

Question 5

What is Anosmia?

Answer 5

The lose of olfaction (sense of smell)

Question 6

What vessels give the nasal cavity its primary blood supply?

Answer 6

1) Sphenopalatine branch of the maxilary artery

2) Anterior Ethmoidal branch of the ophthalmic artery

Question 7

What is the most important blood vessel of the nasal cavity?

Answer 7

Sphenopalatine branch of the maxillary artery

Question 8

Where does lymph from the nasal cavity drain into?

Answer 8

Deep cervical lymph nodes