Question 1

Development of a cleft palate occurs between the 7th and the 11th week. If it occurs early, only the soft palate or uvula will be affected.

Accepted Answer

A)  Both statements are true. 
B)  The first statement is true; the second is false. 
C)  The first statement is false; the second is true. 
D)  Both statements are false. 
A)  Both statements are true. 
B)  The first statement is true; the second is false. 
C)  The first statement is false; the second is true. 
D)  Both statements are false.

Question 2

Which pharyngeal arch will degenerate after formation?

Accepted Answer

A)  Third 
B)  Fourth 
C)  Fifth 
D)  Sixth 
E)  None 
A)  Third 
B)  Fourth 
C)  Fifth 
D)  Sixth 
E)  None

Question 3

The first and second pharyngeal arches are the largest because they are formed earlier in the developmental process.

Accepted Answer

A)  Both the statement and the reason are correct and related. 
B)  Both the statement and the reason are correct but are NOT related. 
C)  The statement is correct, but the reason is NOT correct. 
D)  The statement is NOT correct, but the reason is correct. 
E)  NEITHER the statement NOR the reason is correct. 
A)  Both the statement and the reason are correct and related. 
B)  Both the statement and the reason are correct but are NOT related. 
C)  The statement is correct, but the reason is NOT correct. 
D)  The statement is NOT correct, but the reason is correct. 
E)  NEITHER the statement NOR the reason is correct.

Question 4

Rathke's pouch forms the posterior part of the pituitary gland.

Accepted Answer

A) True 
 B)False

Question 5

If the thyroid gland does not form normally, a red lump known as a lateral lingual swelling develops. This abnormal formation is located on the floor of the mouth.

Accepted Answer

A)  Both statements are true. 
B)  The first statement is true; the second is false. 
C)  The first statement is false; the second is true. 
D)  Both statements are false. 
A)  Both statements are true. 
B)  The first statement is true; the second is false. 
C)  The first statement is false; the second is true. 
D)  Both statements are false.

Question 6

Landmarks that separate the pharyngeal arches are known as all of the following except the pharyngeal

Accepted Answer

A)  Clefts 
B)  Grooves 
C)  Pouches 
D)  Openings 
A)  Clefts 
B)  Grooves 
C)  Pouches 
D)  Openings

Question 7

The hyoid bone arises from the second and third pharyngeal arches.

Accepted Answer

A) True 
 B)False

Question 8

The hyoid arch is pharyngeal arch number

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
A)  I 
B)  II 
C)  III 
D)  IV

Question 9

Which ethnic group is most likely to have a combined cleft lip and palate?

Accepted Answer

A)  Caucasians 
B)  Asians 
C)  African Americans 
D)  There is very little differentiation by ethnicity. 
A)  Caucasians 
B)  Asians 
C)  African Americans 
D)  There is very little differentiation by ethnicity.

Question 10

A globulomaxillary cyst results from improper fusion of the maxillary and mandibular processes. This cyst lies between the maxillary lateral incisor and canine.

Accepted Answer

A)  Both statements are true. 
B)  The first statement is true; the second is false. 
C)  The first statement is false; the second is true. 
D)  Both statements are false. 
A)  Both statements are true. 
B)  The first statement is true; the second is false. 
C)  The first statement is false; the second is true. 
D)  Both statements are false.

Question 11

The thyroid gland originates from the

Accepted Answer

A)  Foramen cecum 
B)  Anterior two-thirds of the tongue 
C)  Posterior third of the tongue 
D)  Midline of the inner surface of the pharyngeal arches 
E)  All of the above 
A)  Foramen cecum 
B)  Anterior two-thirds of the tongue 
C)  Posterior third of the tongue 
D)  Midline of the inner surface of the pharyngeal arches 
E)  All of the above

Exam 18: Development of Orofacial Complex

Development of a cleft palate occurs between the 7th and the 11th week. If it occurs early, only the soft palate or uvula will be affected.

Which pharyngeal arch will degenerate after formation?

The first and second pharyngeal arches are the largest because they are formed earlier in the developmental process.

Rathke's pouch forms the posterior part of the pituitary gland.

If the thyroid gland does not form normally, a red lump known as a lateral lingual swelling develops. This abnormal formation is located on the floor of the mouth.

Landmarks that separate the pharyngeal arches are known as all of the following except the pharyngeal

The hyoid bone arises from the second and third pharyngeal arches.

The hyoid arch is pharyngeal arch number

Which ethnic group is most likely to have a combined cleft lip and palate?

A globulomaxillary cyst results from improper fusion of the maxillary and mandibular processes. This cyst lies between the maxillary lateral incisor and canine.

The thyroid gland originates from the

Oral Cavity

The Tooth: Functions and Terms

Fundamental and Preventive Curvatures

Dentition

Development, Form, and Eruption

Occlusion

Dental Anomalies

Supporting Structures

Clinical Considerations

Tooth Identification

Root Morphology

Incisors

Canines

Premolars

Molars

Deciduous Dentition

Basic Tissues

Dental Lamina and Enamel Organ

Enamel, Dentin, and Pulp

Root Formation and Attachment Apparatus

Eruption and Shedding of Teeth

Oral Mucous Membrane

The Tongue

Salivary Glands

Osteology of the Skull

Nose, Nasal Cavity, and Paranasal Sinuses

Muscles of Mastication, Hyoid Muscles, and Sternocleidomastoid and Trapezius Muscles

Temporomandibular Joint

Muscles of Facial Expression

Soft Palate and Pharynx

Arterial Supply and Venous Drainage

Salivary Glands

Nervous System

Lymphatics and Spread of Dental Infection

Filters