embryology

Question 1

nasal, saquama temporalis, maxilla, mandible

Answer 1

nc

Question 2

what produces the facial prominences?

Answer 2

cranial neural crest cells

Question 3

what do nasal pits develop from ?

Answer 3

nasal palcodes

Question 4

what forms the boundary between arches 1 and 2?

Answer 4

the external ear

Question 5

what is the process of fusion?

Answer 5

fusion is town processes meeting- in fusion the outer edge of ectoderm must be resorbed- the palate is the only place we have evidence that this process occurs

Question 6

what are the five processes that fuse during development?

Answer 6

2 maxillary
2 mandibular
1 frontonasal

Question 7

what is the nasal placode?

Answer 7

thickening of ectoderm on the frontal prominence it indicates the development of the future nose

Question 8

what is the nasal pit?

Answer 8

depression in the nasal placode indicating the external nares- the openings of the nasal cavity are separate from each other

Question 9

what does the medial nasal process contribute to?

Answer 9

portions of the upper lip-nasal septum, and ethmoid bone

Question 10

what do the lateral nasal processes contribute to?

Answer 10

the lateral portion of the nose

Question 11

what external features of the face are formed by the fusion of the medial nasal processes?

Answer 11

the bridge of the nose and the philtrum of the lip

Question 12

what internal structures of the face are formed by the fusion of the medial nasal processes?

Answer 12

incisor bearing segment of the maxilla and the primary palate

Question 13

what external feature of the face is formed by the fusion of the medial nasal process and the maxillary process?

Answer 13

upper lip

Question 14

what internal feature of the face is formed by the fusion of the medial nasal process and the maxillary process

Answer 14

maxillary arch

Question 15

what external feature of the face is formed by the fusion of the lateral nasal process and the maxillary process? specifically from the mp?

Answer 15

infraorbital region and cheek

Question 16

what external feature of the face is formed by the fusion of the lateral nasal process and the maxillary process? specifically the lnp

Answer 16

ala of the nose

Question 17

what external feature of the face is formed by the fusion of the mandibular process?

Answer 17

lower lip- chin

Question 18

what internal feature of the face is formed by the fusion of the mandibular process?

Answer 18

mandibular arch

Question 19

what are the lateral lingual swellings?

Answer 19

two lateral swellings of the mandibular arch

Question 20

what is the turberculum impar?

Answer 20

a single mid-line swelling posterior to the tuberculum impar

Question 21

what is the copula?

Answer 21

a single midline swelling posterior to the tuberculum impar- derived from the 2, 3, and 4 arches

Question 22

how is the body of the tongue formed?

Answer 22

the forward grouwht of the lateral lingual swelling fusing with the tuberculum impar

Question 23

what is the innervation of the anterior tongue?

Answer 23

sensation- 5

taste 7

Question 24

what does the root of the tongue develop from?

Answer 24

copula

Question 25

what is the innervation of the posterior tongue?

Answer 25

sensation 9 taste 9 and 10 efferent fibers 12

Question 26

what is the primary palate and what does it develop from?

Answer 26

small triangular portion of the hard palate- it forms from the fusion of two medial nasal processes

Question 27

how does the secondary palate form?

Answer 27

the fusion of the palatine shelves which are outgrowths of the maxillary processes- they are initially vertical with the tongue between- the tongue retracts downward and the shelves move horizontally to fuse

Question 28

malleus

Answer 28

nc

Question 29

temporalis

Answer 29

me

Question 30

thymus

Answer 30

en

Question 31

pharyngotympanic tube

Answer 31

en

Question 32

mandible

Answer 32

nc

Question 33

thyroid cartilage

Answer 33

nc

Question 34

hyoid bone

Answer 34

nc

Question 35

orbicular orsi

Answer 35

me

Question 36

stylopharyngeus muscle

Answer 36

me

Question 37

maxilla

Answer 37

nc

Question 38

superior parathyroid glnad

Answer 38

nc

Question 39

superior constrictor of pharnx

Answer 39

me

Question 40

incus #

Answer 40

1

Question 41

lesser horn of hyoid #

Answer 41

2

Question 42

buccinator mucsle# FE

Answer 42

2

Question 43

masseter# MATT

Answer 43

1

Question 44

cricoid cartilage of larynx#

Answer 44

4

Question 45

stylopharygeus muscle#

Answer 45

3

Question 46

greater horn of hyoid bone#

Answer 46

3

Question 47

stapes#

Answer 47

2

Question 48

cricothyroid muscle of larynx#

Answer 48

4

Question 49

inferior constrictor of pharynx#

Answer 49

4

Question 50

zygomaticus major muscleFE

Answer 50

2

Question 51

thyroid cart of larynx#

Answer 51

1

Question 52

lateral pterygoid MATT

Answer 52

1

Question 53

sphenomandibular ligament#

Answer 53

1

Question 54

stylohyoid ligament #

Answer 54

2

Question 55

zygomatic bone

Answer 55

1