Shared Flashcard Set

Details

Positioning
HW Questions Week 10 and 11 (Skull, Mandible, Nasal bones, Facial bones, Sinuses, Orbits)
56
Anatomy
Undergraduate 1
11/15/2017

Additional Anatomy Flashcards

 


 

Cards

Term
For an SMV projection of the cranial base, the central ray should always be perpendicular to the:
Definition
infraorbitomeatal line
Term
How many bones are contained in the skull?
Definition
22
Term
How many bones make up the cranium?
Definition
8
Term
How many bones make up the face?
Definition
14
Term
How many degrees is the head rotated for the parietoorbital (Rhese) projection of the optic canal?
Definition
53 degrees
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?
Definition
37 degrees caudad
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?
Definition
Infraorbitomeatal line
Term
In a typically shaped head, the petrous pyramids project anteriorly and medially at what angle?
Definition
47 degrees
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?
Definition
15 degrees cephalad
Term
Radiographic demonstration of the cranial base is performed by which method?
Definition
Schüller
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:
Definition
Term
The base of the temporal bone contains an opening through which the internal carotid artery passes and is termed the:
Definition
Foramen Lacerum
Term
The central ray and center of the IR position for a lateral projection of the skull is:
Definition
2 inches above the EAM
Term
The central-ray angle for the PA axial (Caldwell) projection of the skull is:
Definition
15 degrees caudad
Term
The central-ray angulation for the parietoorbital (Rhese) projection of the optic canal is:
Definition
0 degrees
Term
The large aperture in the occipital bone, through which the medulla oblongata and spinal cord exit, is termed the:
Definition
Foramen Magnum
Term
The largest and most dense bone of the face is the:
Definition
mandible
Term
The maxillary sinus is located in which bone?
Definition
maxillae
Term
The opening into the apex of the orbit for the transmission of the optic nerve and ophthalmic artery is called the:
Definition
foramen
Term
The posterior half of the base of the skull is formed by which bone?
Definition
occipital
Term
The six areas of incomplete ossification in a newborn infant's skull are called the:
Definition
fontanels
Term
The small bone situated at the base of the tongue is the
Definition
hyoid
Term
The superior aspect of the sphenoid bone contains a deep depression that contains the
Definition
Term
The suture located between the occipital bone and the parietal bones is the
Definition
lambdoidal
Term
The thickest and densest portion of bone in the cranium is the:
Definition
petrous portion of the temporal bone
Term
The zygomatic arches are a part of which bone?
Definition
temporal
Term
What is the average central-ray angulation for the PA axial (Haas) projection of the skull?
Definition
25 degrees cephalad
Term
What is the central-ray angulation for demonstration of the entire foramen magnum during an AP axial (Towne) projection?
Definition
40 to 60 degrees caudad
Term
What is the central-ray angulation for the SMV projection?
Definition
0 degrees
Term
Which line is placed perpendicular to the IR for the parietoorbital oblique (Rhese) projection of the optic canal?
Definition
acanthiomeatal line
Term
Which line should be placed parallel to the plane of the IR for the SMV projection of the cranial base?
Definition

 

Term
Which method of examining the skull will demonstrate the petrous ridges in the orbits, the ethmoid and frontal sinuses, and the crista galli?
Definition
Caldwell
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

Definition
1, 2, and 3
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
Definition
1, 2, and 3
Term
Which of the following bones are contained in the calvarium?
1.) frontal
2.) parietal
3.) temporal
Definition
1 and 2
Term
Which of the following bones contain air sinuses?
1.) ethmoid
2.) frontal
3.) sphenoid
Definition
1, 2, and 3
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
Definition
1 and 3
Term
Which of the following is located in the middle ear?
Definition
tympanic membrane
Term
Which of the following is perpendicular to the plane of the IR for a Caldwell projection of the skull?
Definition
orbitomeatal line
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
Definition
1 and 2
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
Definition
1 only
Term
Which of the following lines is placed perpendicular to the plane of the IR for the AP axial (Towne) projection?
Definition
Orbitomeatal line
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
Definition
1, 2, and 3
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
Definition
1 and 2
Term
Which plane of the head is placed parallel to the plane of the IR for a lateral projection of the skull?
Definition
midsagittal
Term
Which skull suture is found between the frontal and parietal bones?
Definition
coronal
Term
Which skull suture is located between the parietal bones?
Definition
sagittal
Term
Which two facial bones form the roof of the mouth?
1.) maxillae
2.) vomer
3.) palatine bones
Definition
1 and 3
Term
For a lateral projection of the facial bones, the central ray will enter:
Definition
halfway between the outer canthus and the EAM
Term
For the Waters method, the orbitomeatal line is placed at what angle to the IR?
Definition
37 degrees
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
Definition
1 and 2
Term
The central-ray angle for the PA axial (Caldwell) projection of the skull is:
Definition
15 degrees caudad
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
Definition
2 only
Term
The respiration phase for all projections of the facial bones and sinuses is:
Definition
suspended
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
Definition
2 and 3
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
Definition
2 and 3
Supporting users have an ad free experience!