Term
| For an SMV projection of the cranial base, the central ray should always be perpendicular to the: |
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Definition
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Term
| How many bones are contained in the skull? |
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Definition
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Term
| How many bones make up the cranium? |
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Definition
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Term
| How many bones make up the face? |
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Definition
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Term
| How many degrees is the head rotated for the parietoorbital (Rhese) projection of the optic canal? |
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Definition
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Term
| If the infraorbitomeatal line is placed perpendicular to the IR during an AP axial (Towne) projection of the skull, how much is the central ray angled? |
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Definition
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Term
| If the patient cannot flex the neck to place the orbitomeatal line perpendicular to the IR for an AP axial (Towne) projection, which line should be placed perpendicular? |
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Definition
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Term
| In a typically shaped head, the petrous pyramids project anteriorly and medially at what angle? |
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Definition
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Term
| Often a patient cannot be turned into the prone position for a PA axial projection of the skull (Caldwell method). What central-ray angle could be used if the AP axialprojection is used instead? |
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Definition
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Term
| Radiographic demonstration of the cranial base is performed by which method? |
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Definition
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Term
| The base of the anterior portion of the occipital bone contains two large openings that allow blood vessels and nerves to pass through. These two openings are called the: |
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Definition
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Term
| The base of the temporal bone contains an opening through which the internal carotid artery passes and is termed the: |
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Definition
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Term
| The central ray and center of the IR position for a lateral projection of the skull is: |
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Definition
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Term
| The central-ray angle for the PA axial (Caldwell) projection of the skull is: |
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Definition
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Term
| The central-ray angulation for the parietoorbital (Rhese) projection of the optic canal is: |
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Definition
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Term
| The large aperture in the occipital bone, through which the medulla oblongata and spinal cord exit, is termed the: |
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Definition
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Term
| The largest and most dense bone of the face is the: |
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Definition
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Term
| The maxillary sinus is located in which bone? |
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Definition
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Term
| The opening into the apex of the orbit for the transmission of the optic nerve and ophthalmic artery is called the: |
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Definition
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Term
| The posterior half of the base of the skull is formed by which bone? |
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Definition
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Term
| The six areas of incomplete ossification in a newborn infant's skull are called the: |
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Definition
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Term
| The small bone situated at the base of the tongue is the |
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Definition
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Term
| The superior aspect of the sphenoid bone contains a deep depression that contains the |
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Definition
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Term
| The suture located between the occipital bone and the parietal bones is the |
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Definition
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Term
| The thickest and densest portion of bone in the cranium is the: |
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Definition
| petrous portion of the temporal bone |
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Term
| The zygomatic arches are a part of which bone? |
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Definition
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Term
| What is the average central-ray angulation for the PA axial (Haas) projection of the skull? |
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Definition
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Term
| What is the central-ray angulation for demonstration of the entire foramen magnum during an AP axial (Towne) projection? |
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Definition
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Term
| What is the central-ray angulation for the SMV projection? |
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Definition
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Term
| Which line is placed perpendicular to the IR for the parietoorbital oblique (Rhese) projection of the optic canal? |
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Definition
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Term
| Which line should be placed parallel to the plane of the IR for the SMV projection of the cranial base? |
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Definition
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Term
| Which method of examining the skull will demonstrate the petrous ridges in the orbits, the ethmoid and frontal sinuses, and the crista galli? |
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Definition
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Term
Which of the following are clearly demonstrated on an SMV projection of the cranial base?
1.) mastoid process
2.) sphenoid process
3.) carotid canals |
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Definition
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Term
Which of the following are demonstrated on an AP axial (Towne method) projection of the skull?
1.) petrous pyramids
2.) occipital bone
3.) posterior portion of the foramen magnum |
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Definition
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Term
Which of the following bones are contained in the calvarium?
1.) frontal
2.) parietal
3.) temporal |
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Definition
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Term
Which of the following bones contain air sinuses?
1.) ethmoid
2.) frontal
3.) sphenoid |
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Definition
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Term
Which of the following is clearly demonstrated within the foramen magnum during an AP axial (Towne) projection of the skull?
1.) dorsum sellae
2.) sella turcica
3.) posterior clinoid processes |
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Definition
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Term
| Which of the following is located in the middle ear? |
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Definition
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Term
| Which of the following is perpendicular to the plane of the IR for a Caldwell projection of the skull? |
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Definition
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Term
Which of the following is true regarding the lateral projection of the skull?
1.) the midsagittal plane of the head is parallel to the plane of the IR
2.) the interpupillary line is perpendicular to the IR
3.) the mentomeatal line is parallel with the bottom edge of the IR |
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Definition
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Term
Which of the following is true regarding the placement of the IR for an AP axial (Towne) projection of the skull?
1.) its upper margin is at the level of the top of the cranium
2.) its upper margin is 2 inches above the top of the cranium
3.) its upper margin is 2 inches below the top of the cranium |
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Definition
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Term
| Which of the following lines is placed perpendicular to the plane of the IR for the AP axial (Towne) projection? |
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Definition
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Term
Which of the following should be seen superimposed on a lateral projection of the skull?
1.) orbital roofs
2.) external acoustic meati
3.) temporomandibular joints |
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Definition
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Term
Which parts of the patient's face touch the IR and/or table for a PA axial projection (Caldwell method)?
1.) forehead
2.) nose
3.) chin |
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Definition
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Term
| Which plane of the head is placed parallel to the plane of the IR for a lateral projection of the skull? |
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Definition
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Term
| Which skull suture is found between the frontal and parietal bones? |
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Definition
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Term
| Which skull suture is located between the parietal bones? |
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Definition
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Term
Which two facial bones form the roof of the mouth?
1.) maxillae
2.) vomer
3.) palatine bones |
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Definition
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Term
| For a lateral projection of the facial bones, the central ray will enter: |
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Definition
| halfway between the outer canthus and the EAM |
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Term
| For the Waters method, the orbitomeatal line is placed at what angle to the IR? |
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Definition
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Term
Patients who are having an examination of the paranasal sinuses should always be examined in the upright position to:
1.) demonstrate the presence or absence of fluid
2.) differentiate between fluid and other pathological conditions
3.) make it easier for the radiographer to position the patient |
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Definition
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Term
| The central-ray angle for the PA axial (Caldwell) projection of the skull is: |
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Definition
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Term
The most effective way to protect the patient from unnecessary radiation during sinus radiography is to use:
1.) low kVp
2.) proper collimation
3.) short exposure times |
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Definition
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Term
| The respiration phase for all projections of the facial bones and sinuses is: |
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Definition
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Term
To successfully demonstrate the ethmoidal and sphenoidal sinuses on the SMV projection, which of the following must occur?
1.) the patient must be recumbent
2.) the infraorbitomeatal line must be parallel with the IR
3.) the central ray must be perpendicular to the infraorbitomeatal line and horizontal |
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Definition
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Term
Which of the following is true regarding the lateral projection of the nasal bones?
1.) tabletop is preferred for better detail
2.) both sides are done for comparison
3.) the interpupillary line is perpendicular to the tabletop |
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Definition
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