Cranium/facial Flashcards
Which of the following bones is not part of the floor of the cranium
Occipital
Which aspect of the frontal bone is thin-walled and forms the forehead
Squamous
Which four cranial bones articulate with the frontal bone
R parietal, L parietal, sphenoid, ethmoid
Which structures are found at the widest aspect of the skull
Parietal tubercles/ eminences
What is the name of a prominent landmark (or bump) found on the external surface of the occipital bone
“Inion” external occipital protuberance
What is the thickest and densest structure in the cranium
(Pyramids) petrous portion
T/F The hypophysis cerebri is another term for the pituitary gland
True
T/F The sphenoid bone articulates with all the other cranial bones
True
The shallow depression just posterior to the base of the dorsum sellae and anterior to the foremen magnum is the
Clivus
What is the name of the paired collections of the bone found inferior to the cribriform plate that contain numerous air cells and help form the lateral walls of the nasal cavity
Lateral labyrinth (masses)
Which small section of bone is located superior to the cribriform plate
Crista galli
What is the formal term for the left sphenoid fontanel in the adult
Left pterion
What is the name of the cranial suture formed by the inferior junction of the parietals to the temporal bones
Squamousal suture
What are the two terms for the small, irregular bones found in the adult skull sutures
Sutral /wormian bones
Which of the bones does not articulate with the frontal bone
Temporal
Which of the following landmarks corresponds to the highest level of the petrous ridge
TEA
The slight depression above each eyebrow is termed the
Supraorbital groove
What is the name of the joint found between the lateral condylar processes of the skull and the atlas of C1
Atlanto-occipital joint
How much difference in degrees is there between the OML and the IOML
7-8°
Which of the following positioning errors frequently results in a repeat exposure of a cranial position
Rotation
Which of the following middle ear structures is considered the most lateral
Malleus
Which of the following sutures separates the parietal from the occipital bone
Lambdoidal
Which cranial bone contains the cribriform plate
Ethmoid
Which cranial bone contains the foremen ovale
Sphenoid