TISSUE LANDMARKS

Question 1

The highest bony point on the upper margin of external auditory meatus.

Answer 1

PORION (PO)

Question 2

The most anterior point midway between the frontal and nasal bones on the fronto-nasal suture.

Answer 2

NASION (NA)

Question 3

The lowest point on the inferior bony margin of the orbit

Answer 3

ORBITALE (OR)

Question 4

The point represented the midpoint of the pituitary fossa or sella turcica. It is a constructed point in the mid sagittal plane

Answer 4

SELLA

Question 5

It is the deepest point in the midline between the anterior nasal spine and alveolar crest between the two central incisors.

Answer 5

POINT A

Question 6

It is the deepest point in the midline between the alveolar crest of mandible and the mental process.

Answer 6

POINT B

Question 7

It is the median point of anterior margin of foramen magnum

Answer 7

BASION

Question 8

The highest point at the post condylar notch of the occipital bone.

Answer 8

BOLTON POINT

Question 9

It is the anterior tip of the sharp bony process of the maxilla in the midline of the lower margin of anterior nasal opening.

Answer 9

ANTERIOR NASAL SPINE

Question 10

It is a constructed point at the junction of the ramal plane and the mandibular plane.

Answer 10

GONION

Question 11

It is the most anterior point of the bony chin in the median plane.

Answer 11

POGONION

Question 12

It is the most inferior midline point on the mandibular symphysis

Answer 12

MENTON

Question 13

It is the most antero-inferior point on the symphysis of the chin

Answer 13

GNATHION

Question 14

It is a point at the junction of the posterior borde of ramus and the inferior border of the basilar part of the occipital bone.

Answer 14

ARTICULARE

Question 15

The most superior point on the head of the condyle.

Answer 15

CONDYLION

Question 16

The lowest and most anterior point on the alveolar bone in the midline, between the upper central incisors. It is also called Supradentale

Answer 16

PROSTHION

Question 17

The intersection of a continuation of the anterior wall of the pterygo-palatine fossa and the floor of the nose, marking the distal limit of the maxilla.

Answer 17

POSTERIOR NASAL SPINE

Question 18

It is the most prominent point of the forehead in the mid sagittal plane.

Answer 18

GLABELLA

Question 19

It is the lateral terminus of the oral slit on the outer corner of the mouth.

Answer 19

CHELION

Question 20

The point where the lowest border of the nose meets the outer contour of the upper lip.

Answer 20

SUBNASALE

Question 21

It is the deepest point in the concavity of the soft tissue contour of the root of the nose.

Answer 21

NASION SOFT TISSUE

Question 22

The most prominent point of the nose.

Answer 22

PRONASALE

Question 23

It is the intersection of the lower border of the nose and the outer contour of the upper lip.

Answer 23

SUBNASALE

Question 24

The median point in the upper margin of the upper membranous

Answer 24

LABRALE SUPERIUS

Question 25

The median point in the lower margin of the lower membranous lip.

Answer 25

LABRALE INFERIUS

Question 26

It is the point of the greatest concavity in the midline of the upper lip.

Answer 26

SUPERIOR LABIAL SULCUS

Question 27

It is the lowest point of the upper lip

Answer 27

STOMION SUPERIUS

Question 28

It is the highest point of the lower lip

Answer 28

STOMION INFERIUS

Question 29

It is the midpoint between stomion superius and stomion inferius.

Answer 29

STOMION

Question 30

It is the most prominent point on the soft tissue contour of the chin.

Answer 30

POGONION SOFT TISSUE

Question 31

It is a constructed point at the intersection of a vertical co-ordinate from menton and the inferior soft tissue contour of the chin.

Answer 31

MENTON SOFT TISSUE