Deck 4: Development of the Face and Palate

Question 1

The heart begins pumping blood during which week of gestation?

A) Fourth
B) Fifth
C) Sixth
D) Seventh

Answer 1

A

Question 2

Each of the following is part of Waldeyer's tonsillar ring EXCEPT one.Which is the EXCEPTION?

A) Lingual tonsil
B) Palatine tonsil
C) Pharyngeal tonsil
D) Foramen cecum

Answer 2

D

Question 3

The thyroid gland descends to the front of the trachea,attached to the tongue by the thyroglossal ________.

A) duct
B) cyst
C) fistula
D) swelling

Answer 3

A

Question 4

Development of the upper lip depends on fusion of the philtrum and maxillary processes.

Question 5

Which muscle grows around the oral pit in the sixth prenatal week?

A) Buccinator
B) Mylohyoid
C) Orbicularis oris
D) Zygomatic major

Question 6

Palatal development occurs during the __________ weeks of gestation.

A) first to third
B) fourth to sixth
C) seventh to ninth
D) tenth to twelfth

Question 7

In which direction do the palatine shelves grow on contact with the tongue in the seventh prenatal week?

A) Upward
B) Downward
C) Anteriorly
D) Posteriorly

Question 8

The oral and nasal cavities are separated by the

A) alveolar bone.
B) anterior nasal spine.
C) palate.
D) nasal septum.

Question 9

A combination of genetic and _____ factors are associated with palatal and facial clefts.

A) social
B) behavioral
C) age-related
D) environmental

Question 10

Which best defines the term fusion?

A) A separation of tissues
B) The enzymatic action that results in self-destruction
C) A merging of adjacent tissues during orofacial development
D) The period of growth in which the face becomes recognizably human

Question 11

Each cranial nerve innervates the tongue,EXCEPT one.Which is the EXCEPTION?

A) V
B) VII
C) VIII
D) X

Question 12

Which significant change occurs in the fifth prenatal week?

A) The heart begins to beat.
B) The bilateral placodes develop into nostrils.
C) The palatine shelves grow medially and contact the tongue.
D) The eyes move from the side of the face to the front of the face.

Question 13

A cleft may occur in the _______.

A) lip
B) palate
C) mandible
D) lip,palate,and mandible

Question 14

A swelling that opens on the surface of the neck is called a thyroglossal _________.

A) cyst
B) duct
C) gland
D) fistula

Question 15

In the fifth week,the frontal process becomes known as the:

A) frontonasal process.
B) philtrum.
C) medial nasal process.
D) lateral nasal process.

Question 16

The word for programmed cell death during palatal shelf elevation and closure is

A) fusion.
B) merging.
C) apoptosis.
D) migration.

Question 17

Which best defines the term nasal fin?

A) Oblique groove extending from the nostrils to the eyes
B) Medial nasal process that composes part of the upper lip
C) Zone of fusion that binds the maxillary and medial processes
D) Wedge-shaped process that assists in the formation of the palate

Question 18

Auricular hillocks develop near which location?

A) External ear canal
B) Tuberculum impar
C) Medial nasal process
D) Oronasal optic groove

Question 19

The second pharyngeal arch is also known as the __________ arch.

A) hyoid
B) inferior
C) superior
D) mandibular

Question 20

The thyroid gland originates from

A) foramen cecum.
B) muscles of the occipital myotomes.
C) the auricular hillocks.
D) the palatine shelves.

Question 21

Bilateral nasal placodes appear in the seventh week of gestation.

Question 22

Cleft palate will not occur without cleft lip.

Question 23

Palatal shelf elevation occurs slowly,over the course of several weeks.

Question 24

The tongue's immovable base develops from the first branchial arch.

Question 25

Epithelial cysts occasionally arise along the path of thyroid descent.

Question 26

White males develop a cleft lip more often than white females.

Question 27

Cleft palate is the most common facial malformation.

Question 28

An opening of a nostril into the oral cavity is classified as an incomplete cleft lip.

Question 29

The eyes move to the front of the face in the sixth week of prenatal development.