Orofacial Structures

Question 1

what is the upper lip composed of

Answer 1

2 maxillary processes and a medial nasal process

Question 2

what is another name for the medial nasal process

Answer 2

philtrum

Question 3

what are the three parts of the palate

Answer 3

medial part (primary palate) and 2 lateral palatine processes

Question 4

what is the anterior wedge-shaped part of the palate called

Answer 4

primary palate or medial part

Question 5

how does the tissue merge

Answer 5

Anteriorly to posteriorly

Question 6

how many diff cranial nerves innervate the tongue

Answer 6

4

fifth , seventh, ninth, and tenth cranial nerves

Question 7

what separated the base and the body of the tongue

Answer 7

terminal sulcus

Question 8

what makes up the waldeyers ring

Answer 8

lingual tonsils, palatine tonsils, and pharyngeal tonsils

Question 9

the thyroid gland originates from what

Answer 9

foramen cecum

Question 10

during development, how does the thyroid gland remain attached to the tongue

Answer 10

by the thyroglossal duct

Question 11

thyroglossal cyst are commonly found in what area

Answer 11

area of the hyoid bone

Question 12

what is the name of a blind pocket lined with thyroid epithelium

Answer 12

thyroglossal cyst

Question 13

what month does the thyroid gland begin functioning

Answer 13

end of third month

Question 14

what muscle supports the upper lip

Answer 14

orbicularis oris

Question 15

3 processes forming palate

Answer 15

• Primary palate
• Right lateral palatine process
• Left lateral palatine process

Question 16

T/F

Oral cavity alone opens into pharynx

Answer 16

False

Question 17

Connects tongue

Answer 17

Thyroglossal duct

Question 18

Clefts are most common in:

Answer 18

Asians

Question 19

Cleft lips most common in:

Answer 19

White men

Question 20

Cleft palates most common in:

Answer 20

White females

Question 21

Tongue innervated by how many nerves?

Answer 21

5

Question 22

List the nerves innervated from tongue

Answer 22

V3 lingual
VII Chordia tympani 
IX glossopharyngeal
X vagus
XII Hypoglossal

Question 23

Facial development occurs when?

Answer 23

4-7 weeks

Question 24

Fastest growing organ during early development

Answer 24

Heart

Question 25

Heart begins beating in the _________ week

Answer 25

4th

Question 26

First brachial arch divides into _____ arches

Answer 26

2

Question 27

Name the arches from the 1st brachial arch

Answer 27

Maxillary process

Mandibular process

Question 28

Maxillary process gives rise to _____________

Answer 28

Sides of upper lips
Upper cheeks
Lateral palatine shelves

Question 29

Mandibular process gives rise to _________________

Answer 29

Lower jaw
Lower face
Lip

Question 30

Philtrum comes from what process

Answer 30

Medial nasal (globular) process

Question 31

Cartilage for 1st mandibular arch

Answer 31

Meckel’s cartilage

Question 32

Cartilage for secondary mandibular arch

Answer 32

Reichart’s cartilage