Ethmoid Flashcards
1. Identify the features of the ethmoid including the crista galli, cribiform plate, perpendicular plate, superior nasal concha, middle nasal concha, ethmoid air cells, and the orbital plates 2. Identify the anterior and posterior ethmoidal foramina 3. Identify which bones the ethmoid articulates with 4. Identify the sutures of the ethmoid bone
The bridging bone of the cranium
Ethmoid bone
Forms the anteromedial floor of the cranium
Ethmoid bone
The ethmoid bone forms the roof of the ____ cavity and makes up part of the ____ septum
nasal, nasal
The ethmoid bone makes up the medial ____ wall
Orbital
Network of air pockets within the bone that make up the ethmoid sinus
Ethmoid air cells in the ethmoid bone
The ethmoid contains these two conchae
superior and middle
The ethmoid bone does not contain this conchae
inferior
Narrow, curled bones that protrude into the breathing passage. The are made of spongy bone that warms and humidifies the air
Middle and superior nasal concha
This plate forms part of the nasal septum and makes up the medial wall of the nasal cavity
Perpendicular plate
Superior and middle nasal concha lay in what wall of the nasal cavity
Lateral wall of nasal cavity
These two foramina lay within the orbital plate and transmit important neurovascular structures
anterior ethmoidal foramina
Posterior ethmoidal foramina
Two structure that can be seen from the superior view of the skull
Crista galli and cribiform plate
Serves as an anchor for the falx cerebri (tentorium cerebri)
crista galli
Contains small foramina for the passage of olfactory bulbs of the olfactory nerve (CN 1) to allow for the sense of small to occur
cribiform plate
How many bones does the ethmoid articulate with?
13
