FREE RADIOLOGY AND STUDY GAMES ABOUT SKULL

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FREE RADIOLOGY AND STUDY GAMES ABOUT SKULL

EXAM Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -99 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: The angle for a brachycephalic skull requires how many degree of angle?

• more than 47 to 54
• 47
• less than 40 to 47

Answer:

• more than 47 to 54 degrees

Question 2: An axiolateral oblique (Law Method) projection for the mastoids or TMJ on a brachycephalic-type skull would require ____ rotation as compared with an average-shaped skull.

• more
• less
• the same
• rotation depends on the patient's age

Answer:

• more

Question 3: An x-ray of axiolateral proj of the mandible w/ the head in lat position reveals mandibular body is foreshorten. What modification is needed?

• + rotation of skull toward IR
• - the rotation of skull toward IR
• Decrease CR angle
• Increase CR angle

Answer:

• Increase the rotation of skull toward the image receptor.

Question 4: The ____ sinuses develop last and are not fully developed until the teenage years.

• ethmoid
• sphenoid
• nasal
• maxillary

Answer:

• ethmoid

Question 5: The vestibule is located in the middle ear.

• True
• False

Answer:

• False (it is located in the inner ear)

Question 6: Intercranial hemorrhage in premature infants

Answer:

Ultrasound modality of choice Question 7: What type of of joint movement occurs w/ the temporomandibular joint?

• Fibrous
• Gomphosis
• Spheroidal
• Ginglymus

Answer:

• Fibrous

Question 8: How much cephalad CR angulation is required for the axiolateral projection of the mandible?

• 10-15o
• 25o
• 30o
• 45o

Answer:

• 25o

Question 9: The CR must be placed parallel to the ____ positioning line for the superoinferior (tangetial) projection of nasal bones.

• Glabellomeatal
• Mentomeatal
• Lips-Meatal
• Glabelloalveolar

Answer:

• Glabelloalveolar

Question 10: The modified Law method for TMJ requires a ____-degree rotation of the skull and a ____-degree angle of the CR.

• 15;15
• 10;15
• 5;0
• 0;25-to 30

Answer:

• 15;15

Question 11: The aditus is defined as:

• a large chamber containing the mastoid air cells
• a thin plate of bone separating the mastoid air cells from the brain
• a passageway for the auditory nerve
• an opening between the epitympanic recess & mastoid air cel

Answer:

• an opening between the epitympanic recess and the mastoid air cells

Question 12: The most common radiographic sign for secondary osteomyelitis of the paranasal

sinuses is:

• polyps
• mucosal thickening
• deviation of the bony nasal septum
• erosion of the bony margins

Answer:

• erosion of the bony margins

Question 13: Which of the following landmarks corresponds with the level of the petrous ridges?

• EAM
• TEA
• squamosal suture
• inion

Answer:

• TEA (Top of ear attachment)

Question 14: Which of the following structures passes through the superior orbital fissure?

• Optic nerve
• Olfactory nerve
• Cranial nerve III to VI
• Maxillary branch of the firth cranial nerve

Answer:

• Cranial nerve III to VI

Question 15: Which bones is involved with a tripod fracture?

• Maxilla
• Ethmoid
• Temporal
• Zygomatic

Answer:

• Zygomatic

Question 16: The 15-degree PA axial (Caldwell) projection produces an unobstructed view of the maxilla.

• True
• False

Answer:

• False

Question 17: The PA axial projection (Haas method) for the cranium requires a CR angle of 25o caudad.

• True
• False

Answer: