quiz 2

Question 1

Suture where parietal and occipital bone meet.

Answer 1

• Lambdoidal Suture

Question 2

The only freely movable joint in the head.

Answer 2

• Temporomandibular joint

Question 3

Facial bones that help to form the orbits.

Answer 3

• Ethmoid Bones

Question 4

Known as the radiographic baseline.

Answer 4

Orbitomeatal line

Question 5

What part of the bone is demonstrated in PA

Answer 5

Frontal bones

Question 5

Most important landmark in skull radiography.

Answer 5

-Nasion

Question 6

What is the entrance of central ray in lateral projection of the cranium?

Answer 6

• 2 Inches above the external auditory meatus

Question 6

What central ray is utilized in AP axial projection of cranium

Answer 6

15 degrees cephalad

Question 7

Who recommended that Towne method requires a strong depression of the chin and direction of the central through the foramen

Answer 7

Altschul

Question 8

What is the degree difference between the OML and IOML when performing AP axial Towne method for the cranium?

Answer 8

7 degrees

Question 9

What central ray is utilized in AP axial Towne method to demonstrate the entire foramen magnum?

Answer 9

40-60 degrees

Question 10

It is known as the Reid’s base line.

Answer 10

Infraorbitomeatal line

Question 11

What line should be parallel to the IR when performing submento-vertical projection?

Answer 11

Infraorbitomeatal line

Question 12

What structure is demonstrated in PA
projection of the cranium if the central ray is angled 20-25 degrees caudal?

Answer 12

• Petrous pyramid projected over ⅓ of inferior orbits

Question 13

What central ray is utilized in AP axial Towne method if the OML is perpendicular

Answer 13

30 degrees

Question 13

What line is perpendicular in lateral projection of the cranium?

Answer 13

• Interpupillary line

Question 14

The normal or average type of the skull.

Answer 14

-Mesophalic

Question 14

Protrusion at the back of the skull.

Answer 14

• External Occipital Protuberance

Question 15

It connects the bilateral superior border of the orbit
Sub-nasal point which is the reference point for waters projection.

Answer 15

• Nasion

Question 16

The upper jaw bone.

Answer 16

• Maxilla

Question 17

Known as the soft spots on the baby’s head.

Answer 17

• Fontanelles

Question 18

It makes up the protective frame of bone around the brain.

Answer 18

• Cranial Bone

Question 19

What method is utilized in PA projection of the cranium if the central ray is 15 degrees caudal?

Answer 19

• PA Caldwell Method

Question 20

What structure fills the orbit in PA projection of the cranium utilizing 0 degrees or perpendicular central ray?

Answer 20

• Petrous Pyramids or Petrous ridge