Pneumatized Bones & Paranasal Sinuses Flashcards
1. Identify the definition and function of pneumatized bones 2. Identify the pneumatized bones of the skull 3. Identify the paranasal sinuses
In pneumatized bones volume of air spaces (increase/decrease) with age
Increase
In pneumatized bones, air spaces function to (increase/decrease) the weight of skull bones
Decrease
Contain air spaces in the form of air cells or large sinuses
Pneumatized bones
There are _ unpaired and _ paired pneumatized bones
3, 2
The frontal, ethmoid, and sphenoid bones are (paired/unpaired) pneumatized bones
unpaired
The maxillae and temporal bones are (paired/unpaired) pneumatized bones
paired
Air-filled chambers that are an extension of the respiratory part of the nasal cavity into pneumatized bones
Paranasal sinuses
Sinuses are names after…
the bones within which they are located
Pneumatized bones function to
lighten skull bone and provide mucus epithelium
Name the 4 paranasal sinuses
Frontal sinus, ethmoid sinus, maxillary sinus, sphenoid sinus
Sinusitis is another word for
Sinus infection
Sinusitis may lead to
Inflammation of the mucus lining of the sinus and local pain
Which sinus is most commonly known to become infected?
Maxillary sinus
How many sinuses are proximal to the orbit?
3
Pain from sinus infection is often mistaken with
ocular pain
Best diagnostic test to diagnose sinusitis
CT scan of the head
In-office diagnostic test to confirm suspected sinusitis
Transillumination
During transillumination test, a healthy sinus will
light up
The mastoid process is a feature of which bone?
Temporal bone
Name the 5 pneumatized bones of the skull
maxilla, frontal, ethmoid, sphenoid, temporal
What function do the paranasal sinuses serve?
lighten skull bone, provide mucus epithelium
