Bailey And Johnson - Chapter 22

Front 1

During which gestational weeks do two nasal cavities develop?

Back 1

4th to 8th

Front 2

What does the frontonasal process growing over the forebrain create?

Back 2

The nasal olfactory placodes

Front 3

What becomes the nares?

Back 3

Medial and lateral nasal prominences on either side of the olfactory placode becomes the nares

Front 4

What happens to the olfactory placode?

Back 4

invaginates to form the nasal pit and eventually the nasal sac

Front 5

What forms the upper maxilla and philtrum of the upper lip?

Back 5

Fusion of the MEDIAL NASAL PROMINENCE with the MAXILLARY PROCESS

Front 6

What gives rise to the nasal septum?

Back 6

Posterior midline growth of the frontonasal process and midline extension of the mesoderm from the maxillary process

Front 7

Developmentally what process separates the nasal cavity/nasopharynx from the oral cavity/oropharynx?

Back 7

The primary and secondary palatal shelves join in an axial plane

Front 8

What developmental failure leads to a cleft lip/palate?

Back 8

Failure of the MEDIAL NASAL PROMINENCE wit the MAXILLARY PROCESS

Failure of the Palatal shelves

Front 9

During which developmental week does the simple lateral nasal wall form? Which week do the turbinates form?

Back 9

Six week for simple wall
Seventh for the turbs

Front 10

Which developmental week forms the maxillary sinus?

Back 10

10th week the middle meatus invaginates

Front 11

In what order do the sinuses fully develop?

Back 11

Ethmoid first

Then Maxillary, Sphenoid, Frontal

Front 12

At what developmental week is the lateral nasal wall fully developed and at adult proportions?

Back 12

36 weeks