Image produced is a transaxial or transverse that is perpendicular to the long axis of the body correct answers CT
The plane of the image is parallel to the long axis of the body correct answers Axial tomography
The part of the CT scanner that houses the x-ray tube, cooling system, detector a...
CT || QUESTIONS & ANSWERS 100% CORRECT!!
Image produced is a transaxial or transverse that is perpendicular to the long axis of the body
correct answers CT
The plane of the image is parallel to the long axis of the body correct answers Axial
tomography
The part of the CT scanner that houses the x-ray tube, cooling system, detector assembly, and
data acquisition system (DAS) correct answers Gantry
Related to the x-ray attenuation coefficient of the tissue contained in the voxel correct
answers Hounsfield unit (HU)
When source detector assembly makes one sweep across the patient/internal structure correct
answers Translation
Mathematical formula used to carry out complex calculations required for image
reconstruction correct answers Algorithm
An arrangement of cells in rows and columns correct answers Image matrix
The individual cells in an image matrix correct answers Pixel
Tissue volume, the basic unit of a CT image Determined by multiplying the pixel size by the
thickness of the CT image slice correct answers Voxel
Area of anatomy displayed by the Cathode Ray Tube (CRT) correct answers FOV (Field of
View)
As the FOV of a fixed matrix size is increased, pixel size________________ correct answers
increases proportionately
As matrix size increases for a fixed FOV, pixel size______________ correct answers
decreases
Axial or transverse plane Should be viewed as if one is at the patient's
____________________ correct answers feet and looking up toward the head
In Axial or transverse plane Patient's right is to the viewer's_______ correct answers left
A longitudinal plane dividing the body into anterior and posterior portions correct answers
Coronal
A longitudinal plane dividing the body into right and left portions correct answers Sagittal
Bones and other dense material correct answers white
Air and lower density material correct answers black
, Fat, muscle, and organs correct answers various shades of gray
Bone has a value of correct answers +150 or up to +1000
Dense bone has a value of correct answers +1000 to + 3000
Air has a CT value of correct answers -1000
A longitudinal or transverse plane that is at an angle or slant and not parallel to the sagittal,
coronal or horizontal planes. correct answers Oblique
Shades of gray are assigned CT numbers between those of correct answers bone and air.
The brain is surrounded by three protective layers called ____________ correct answers
meninges
The inner most protective layers of the Brain correct answers Pia matter
The middle protective layers of the Brain correct answers Arachnoid
The Outer most protective layer of the brain correct answers Dura mater
Lies between arachnoid and pia mater; CSF circulates in this space. correct answers
Subarachnoid
Composed of the midbrain, pons and medulla oblongata correct answers Brainstem
Lies in the postero-inferior region of the cranium correct answers Cerebellum
largest ventricle, found in each cerebral hemisphere correct answers Lateral ventricles
Supply the anterior structures of the brain correct answers 2 internal carotid arteries
Transverse the neck and enter the posterior skull by way of the foramen magnum correct
answers 2 vertebral arteries
prevents blood loss in the brain by a unique arterial anastomosis correct answers Circle of
Willis
Created by gaps formed between the inner and outer layers of the dura mater correct answers
Dural venous sinuses
Found within the cranium and forms the medial walls of the orbits and part of the lateral
walls of the nasal cavity. correct answers Ethmoid
How many bones in the face correct answers 14
Forms inferior portion of the bony nasal septum correct answers Vomer
white matter tract that connects the hemisphere RT/LT. correct answers Corpus Callosum
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