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chapter 11 self test

skull

QuestionAnswer
which of the following bones is not part of the floor of the cranium? a.temporal b.ethmoid c.occipital d. sphenoid c.occipital
Which aspect of the frontal bone is thin walled and forms the fore head? squamous
Which 4 cranial bones articulate with the frontal bone? Right parietal left parietal sphenoid ethmoid
Which structures are found at the widest aspect of the skull? parietal tubercles or eminences
What is the name of a prominent landmark (Or bump) found on the external surface fo the occipital bone? external occipital protuberance or inion
List the number of individual bones that articulate with the following cranial bones: A.Parietal: B.Occipital C.Temporal D.Sphenoid E.Ethmoid A.5 B.6 C.3 D.7 E.2
What is the thickest and densest structure in the cranium? Petrous portion or petrous pyramids
T/F: The hypophysis cerebri is another term for 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 foramen magnum is the _________ Clivus
What is the name of the paired collections of bone found inferior to the cribriform plate that contain numerous air cells and help form the lateral walls of the nasal cavity? lateral masses or labyrinth
Which small section of bone is located superior to the cribriform plate? Crista galli
What is the formal term for the left sphenoid fontanel of the adult? left pterion
What is the name of the cranial suture formed by the inferior junction of the parietals to the temporal bone? squamosal suture
What are two terms for the small, irregular bones found in the adult skull sutures? sutural or wormian bones
Which skull classification applies to a skull with an angle of 54 degrees between the midsagittal plane and the long axis of the pars petrosa? Brachycephalic
Which skull classification is considered an average shaped skull? Mesocephalic
Which landmark corresponds to the highest level of the petrous ridge? TEA
Which term is defined as the large cartilaginous aspect of the external ear? Pinna
Reid's base line is an older term for: IOML
How much difference in degrees is there between the OML and the IOML? 7 to 8 degrees
What positioning error frequently results in a repeat exposure of a cranial position? rotation
what clinical indication may require a decrease in manual exposure factor? multiple myeloma
which imaging modality may be used to examine a possible cranial bleed caused by trauma? CT
Which imaging modality provides an excellent distinction between normal and abnormal brain tissue? MRI
Which aspect of the temporal bone is considered the thinnest? squamous portion
 

 



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