The Oral Cavity

Question 1

Structure around lips; junction between mucosa and skin

Answer 1

Vermilion border

Question 2

Another name for upper lip

Answer 2

Labium superius

Question 3

Another name for lower lip

Answer 3

Labium Inferius

Question 4

Structure of the lip; vertical groove in the upper lip formed when nasomedial and maxillary processes meet during embryonic development (if they did not fuse properly, it causes cleft palate/lip)

Answer 4

Philtrum

Question 5

Another name for philtrum

Answer 5

Infranasal depression

Question 6

Tumors composed of tissue caused by constant irritation or trauma

Answer 6

Fibroma

Question 7

Another name for cheeks

Answer 7

Buccae / Buccal Surface

Question 8

The buccae is composed of several layers, with skin on the outside and mucous membrane on the inside. What can be seen in between?

Answer 8

Buccinator muscle and Buccal fat pad of Bichat

Question 9

Separation of cheecks and nose by a groove; also called “canine fossa”

Answer 9

Nasolabial groove / fold

Question 10

Separates chin from the lower lip

Answer 10

Labiomental groove

Question 11

sphincter of the mouth; surrounds the lip and controls its shape, opening and closing, and puckers lips when it contracts

Answer 11

Orbicularis oris

Question 12

Name the five muscles associated with the lips

Answer 12

Orbicularis oris

Levator Anguli Oris

Depressor Anguli Oris

Levator Labii Superioris

Depressor Labii Inferioris

Question 14

What lip muscle is used when you smile, by elevating the corner of the mouth?

Answer 14

Levator anguli oris

Question 15

What lip muscle is used when you frown, by depressing the corner of the mouth?

Answer 15

Depressor anguli oris

Question 16

muscle that elevates the entire upper lip

Answer 16

Levator labii superioris

Question 17

depresses entire lower lip

Answer 17

depressor labii inferioris

Question 18

loose and pinkish upper border of the alveolar process

Answer 18

alveolar process

Question 19

anatomically divides the attached gingiva from the loose alveolar mucosa

Answer 19

Mucogingival line

Question 20

if you are doing a Caldwell Luc procedure and want to minimize appearance of scars, where would you place your surgical incision?

Answer 20

Mucogingival line

Question 21

small curvature at the side of the cheek going to the lips

Answer 21

Mucobuccal fold / Vestibule / Vestibular fornix

Question 22

papilla in between teeth

Answer 22

Interdental papilla

Question 23

Name the two frenum attachments and the structures they attach.

Answer 23

Labial frenum - upper lip to alveolar mucosa

Lingual frenum - tongue to floor of mouth

Question 24

Small tissue or collection of tissue behind the last molar

When making dentures = acts as cushion or support

Answer 24

Retromolar pad

Question 25

Name the structure pointed by the arrow

Answer 25

Retromolar pad