Ex 1- Formation of Face, Tongue, and Oral Cavity

Question 1

What is the order in which the face, oral cavity, and tongue develop?

Answer 1

1. face 2. tongue 3. oral cavity

Question 2

______ is an organization level involved in the growth and development of an organ and an organism

Answer 2

formation

Question 3

_____ is an increase in weight and spatial dimensions (shape) that an organ or organism undergo

Answer 3

growth

Question 4

_______ is the growht of an organ or organism through various morphologic stages on its way to maturity

Answer 4

Development

Question 5

The formation of the face occurs btw embryonic weeks __-___

Answer 5

3-5

Question 6

The crown rump measurement in week 3 is ____ mm and by week 8 in utero it is ____ mm

Answer 6

3 mm 30mm

Question 7

The stomodeum appears in the ____ embryonic week and becomes the nasal and oral cavities btw ___ and ___ embryonic weeks

Answer 7

3rd 6-8th

Question 8

What are the boundaries of the stomodeum during the third embryonic week?

Answer 8

-frontal prominence (superior) - cardiac plate (inferior) -buccopharyngeal membrane (posterior)

Question 9

What type of epithelium lines the stomodeum?

Answer 9

ectoderm

Question 10

What type of epithelium makes up the buccopharyngeal membrane?

Answer 10

endoderm

Question 11

The 4 pairs of branchial (pharyngeal) arches and clefts, appear and disappear during the ____ embryonic week

Answer 11

4th

Question 12

What does Arch 1 become during the 4th week?

Answer 12

• R + L maxillary facial processes - R + L mandibular facial processes

Question 13

______ ______ _____ is the place where the upper maxillary and lower mandibular processes meet at either side of the stomodeum

Answer 13

commissura labiorum oris

Question 14

What does the branchial cleft I between the mandibular process and arch II become?

Answer 14

external auditory meatus

Question 15

The 2 _____ ______ ______ replaces the cadiac plate as the lower boundary of the stomodeum during the 4th week

Answer 15

mandibular facial processes

Question 16

The 2 _____ ______ _____ become the posteriolateral boundaries of the stomodeum

Answer 16

maxillary facial processes

Question 17

2 ____ _____ appear within the frontal prominence during the 4th week

Answer 17

nasal pits

Question 18

After appearance of nasal pits, the frontal prominence becomes what three processes?

Answer 18

1. median nasal facial process 2. R + L lateral nasal facial processes

Question 19

Nasal pits deepen and become _____ _____ that open into the ______. The ducts become nostrils that open into _______ ____ during formation of nasal and oral cavities

Answer 19

nasal ducts stomodeum nasal cavities

Question 20

___ facial processes become the face

Answer 20

7 (3 from frontal prominence_ (4 from branchial arch I)

Question 21

What does the median nasal process become?

Answer 21

midline of nose philtrum of upper lip

Question 22

What does the lateral nasal process become?

Answer 22

lateral sides and ala of nose infraorbital part of face

Question 23

Median and lateral nasal facial processes arose from what structure that was present in the 3rd week IU?

Answer 23

frontal prominence

Question 24

What does the maxillary process become?

Answer 24

upper part of cheeks lateral parts of upper lip

Question 25

What does the mandibular process become?

Answer 25

lower part of cheeks lower lip chin

Question 26

Maxillary and mandibular processes arose from what basic structures?

Answer 26

Arch 1

Question 27

Each arch 1 becomes __ facial processes: __ maxillary, __ mandibular

Answer 27

4 2 2

Question 28

Each cleft I becomes the ______ \_\_\_\_\_\_ \_\_\_\_

Answer 28

external auditory meatus

Question 29

Each Arch II becomes an embryonic fold of tissue called \_\_\_\_\_

Answer 29

operculum (cover)

Question 30

The operculum covers arches ____ and ____ and clefts \_\_\_, \_\_\_, \_\_\_

Answer 30

- III, IV - II, III, IV

Question 31

The operculum becomes the sides of ______ below external auditory meatus

Answer 31

neck

Question 32

The maxillary facial process merges with the ____ \_\_\_\_ _____ process by the 5th embryonic week

Answer 32

median nasal facial

Question 33

Failure of the maxillary facial process to merge with the median nasal facial process by the 5th embryonic week results in what conditions?

Answer 33

unilateral or bilateral clefting of the upper lip

Question 34

If the mandibular processes do not merge with each other by the 5th embryonic week what occurs?

Answer 34

clefting of the lower jaw

Question 35

\_\_\_\_ takes place between facial processes during facial fromation

Answer 35

merging

Question 36

The upper lip is formed by what 3 facial processes?

Answer 36

Right maxillary median nasal left maxillary

Question 37

The lower lip is formed by what 2 facial processes?

Answer 37

right mandibular left mandibular

Question 38

The frontal prominence after the nasal pits appear become the right and left _____ \_\_\_\_\_ ____ processes and the ______ \_\_\_\_\_ _____ process

Answer 38

lateral nasal facial median nasal facial

Question 39

The cardiac plate is replaced by the ______ \_\_\_\_\_\_\_ process during the 4th week IU as the inferior boundary of the stomeodeum

Answer 39

mandibular facial

Question 40

The ______ \_\_\_\_\_ ruptures allowing opening to the foregut that becomes the nasal and oral pharynx

Answer 40

buccopharyngeal membrane

Question 41

The buccopharyngeal membrane is the site of the anterior ____ of \_\_\_\_\_

Answer 41

pillar of facues

Question 42

The tongue forms during the ____ embryonic week as ____ lingual swellings along the ventral, inside surface of mandibular process of branchial arch I, II, and III.

Answer 42

4th 4

Question 43

During the 4th week the buccopharyngeal membrane ruptures and the 4 lingual swellings merge to become the \_\_\_\_

Answer 43

tongue

Question 44

\_\_\_\_\_\_ _____ and 2 _____ \_\_\_\_\_ swellings become the anterior 2/3rd of tongue

Answer 44

Tuberculum impar Lateral lingual

Question 45

\_\_\_\_\_ becomes the posterior 1/3 or root of tongue

Answer 45

Copula

Question 46

The stomodeum will begin to be partitioned into oral and nasal cavities following the ___ embryonic week

Answer 46

6th

Question 47

Formation of the palate and oral cavity occurs btw weeks ___ - \_\_

Answer 47

5-8

Question 48

The ____ \_\_\_\_ arises from inner surface of median nasal facial process

Answer 48

primary palate

Question 49

The _____ \_\_\_\_\_\_ arises from the primary palate

Answer 49

nasal septum

Question 50

The _____ \_\_\_\_ arise from inner surface of maxillary facial processes

Answer 50

palatine folds

Question 51

The palatine folds or shelves have lining epithelium that is connected to an underlying mesenchymal tissue also called \_\_\_\_\_\_\_

Answer 51

ectomesenchyme (originates in ectoderm primary germ layer)

Question 52

The head in general is from what primary germ layer?

Answer 52

ectoderm

Question 53

Structures below the neck is generally from what primary germ layer?

Answer 53

mesoderm

Question 54

During the 5th embryonic week the palatine folds move from a vertical position to a _____ position above the tongue

Answer 54

horizontal

Question 55

The edges of the anterior palatine folds with the primary palate form what shape?

Answer 55

Y

Question 56

Palate epithelial fusion beings in the ____ embryonic week with the fusion of the primary palate with ______ \_\_\_\_\_

Answer 56

6th palatine folds

Question 57

Epithelial fusion of the palate progresses ______ with the epithelium of palatine folds fusing and with epithelium of the nasal septum

Answer 57

posterior

Question 58

Mesenchymal tissue remains in the confines of ______ \_\_\_\_\_\_ and ____ \_\_\_\_\_. This tissue breaks up ______ \_\_\_\_\_ and intermingles within structures

Answer 58

palatine folds nasal septum fused epithelium

Question 59

When _____ is gone and ________ union is completed the _____ palate is formed. _____ and ____ \_\_\_\_\_ are present

Answer 59

epithelium mesenchymal secondary

Question 60

Formation of the secondary palate means that _____ and _____ \_\_\_\_\_ are present

Answer 60

oral cavities nasal cavities

Question 61

Epithelial fusion and mesenchymal union occurs btw weeks __ and ___ IU

Answer 61

6 to 8 wks

Question 62

The arms of Y is fusion and union of site of anterior ends of palatine folds with _____ \_\_\_\_

Answer 62

primary palate

Question 63

The stem of Y is fusion and union of palatine folds with _____ \_\_\_\_ and above with ___ \_\_\_\_\_

Answer 63

each other nasal septum