Anatomy of Nose, Nasal Cavity and Paranasal Sinuses - Fill in the Blank Flashcards

Fill-in-the-blank flashcards covering the nose, nasal cavity, and paranasal sinuses based on lecture notes.

The nose consists of the external nose and the nasal cavity, both divided by the into right and left halves.

septum

The nose is a sense organ for olfaction, respiration and .

beautification

The middle part between the root and apex is called the .

dorsum

The external nose has two elliptical orifices called the , which are separated by the nasal septum.

naris

The skin over the cartilages of the nose contains many glands.

sebaceous

The nasal vestibule contains a variable number of stiff hairs called .

vibrissae

The skeletal framework above the external nose is formed by the nasal bones, the frontal processes of the maxillae, and the nasal part of the bone.

frontal

Below, the framework is formed of plates of hyaline cartilage: two lateral cartilages, two alar cartilages and one cartilage.

septal

The skin of the external nose is supplied by branches of the and the maxillary arteries.

ophthalmic

The skin of the ala and the lower part of the septum are supplied by branches from the artery.

facial

The infratrochlear and external nasal branches of the nerve (CN V) and the infraorbital branch of the maxillary nerve supply the external nose.

ophthalmic

The nasal vestibule is lined with .

skin

The olfactory region occupies the superior of the nasal cavity.

1/3

Boundaries of the nasal cavity include a floor, a roof, a lateral wall, and a wall.

medial

The roof of the nasal cavity is formed anteriorly by the nasal and frontal bones, and in the middle by the cribriform plate of the bone.

ethmoid

The floor of the nasal cavity is formed by the palatine process of the maxilla and the plate of the palatine bone.

horizontal

The nasal septum consists of the perpendicular plate of the bone, the vomer, and the septal cartilage.

ethmoid

Lateral walls of the nasal cavity are marked by superior, middle and inferior conchae; the space below each concha is called a .

meatus

The inferior meatus contains the duct.

nasolacrimal

The superior meatus drains the sinuses.

posterior ethmoid

Openings of the sphenoidal sinuses are into the recess.

sphenoethmoidal

Frontal sinuses open into the middle .

meatus

Maxillary sinus opens into the middle .

meatus

Paranasal sinuses function as resonators of the voice, reduce skull weight, help warm and moisten inhaled air, and act as absorbers in trauma.

shock

The maxillary sinus is located within the body of the .

maxilla

The maxillary sinus opens into the middle .

meatus

Frontal sinuses are contained within the bone.

frontal

Ethmoid sinuses are anterior, middle, and posterior; anterior and middle drain into the nasal meatus; posterior drains into the superior nasal meatus.

middle

Sphenoidal sinuses lie within the body of the bone.

sphenoid

The paranasal sinuses are lined with -periosteum and filled with air.

mucoperiosteum

They communicate with the nasal cavity through relatively small .

apertures

Kiesselbach area is in the antero-inferior portion of the nasal septum and is a common site of .

epistaxis

The vestibule drains lymph to the nodes.

submandibular

The olfactory nerves ascend through the cribriform plate to the .

olfactory bulbs

The sinuses are absent at birth and are lined with -periosteum and filled with air.

mucoperiosteum