quiz on lecture 4

Question 1

mesoderm forms

Answer 1

connective tissue and bone

Question 2

ectoderm forms

Answer 2

skin

Question 3

endoderm forms

Answer 3

digestive tract (GI)

Question 4

what is stomodeum

Answer 4

primitive mouth

Question 5

ectoderm folds and lines

Answer 5

mouth

Question 6

what are the two bulges inferior the mouth

Answer 6

mandibular processes that fuse at midline to form mandibular arch (first branchial arch)

Question 7

what is the cartilage around 1st branchial arch

Answer 7

meckel’s cartilage

Question 8

maxillary processes came from

Answer 8

came from mandibular arch and mesenchyme

Question 9

what do the maxillary processes form

Answer 9

upper lips, cheeks, secondary palate, most of the midface, posterior maxillary teeth and canines

Question 10

max process fuse with mandibular arch on each side to form what

Answer 10

labial commisure

Question 11

what are rounded areas of thickened ectoderm found at the location of developing sense organs, lines otic and nasal ___

Answer 11

placode

Question 12

there is an open communication between

Answer 12

the oral and nasal cavities

Question 13

medial nasal processes fuse externally to help form

Answer 13

upper lip and middle part of nose(philtrum)

Question 14

medial nasal processes fuse internally–

Answer 14

intermaxillary segment(premaxillary primary palate)

Question 15

intermaxillary segment made up of

Answer 15

maxillary incisor teeth and adjacent tissue, primary palate, part of the nasal septum, !primary palate only hold incisor teeth!

Question 16

lateral nasal processes in the future will form

Answer 16

the ala of nose

Question 17

2nd branchial arch called

Answer 17

hyoid arch with reicharts cartilage

Question 18

branchial grooves externally covered with

Answer 18

ectoderm

Question 19

pharyngeal pouches internally covered with

Answer 19

covered with endoderm

Question 20

each arch is separated by

Answer 20

branchial grooves externally and pharyngeal pouches internally

Question 21

grooves = what

Answer 21

clefts when pinch back in

Question 22

maxillary process failure to fuse with medial nasal process

Answer 22

cleft lip

Question 23

what is the mildest form of cleft palate

Answer 23

cleft uvula

Question 24

forms mandible, muscles of mastication(masseter, temporalis, pterygoids), meckels cartilage, incus

Answer 24

1st brachial arch

Question 25

facial muscles and muscles of expression, stapes, styloid, lesser hyoid

Answer 25

2nd brachial arch

Question 26

greater hyoid, a pharyngeal muscles and cartilages of the throat

Answer 26

3rd branchial arch

Question 27

pharyngeal constrictors, thyroid and laryngeal cartilages, muscles of the throat

Answer 27

IV BRANCHIAL ARCH

Question 28

thyroid and laryngeal cartilage

Answer 28

V branchial arch

Question 29

branchial grooves helps form

Answer 29

external auditory canal

Question 30

what are the pharyngeal pouches

Answer 30

I. middle ear, eustachian tube(auditory tube) II. palatine tonsils and pharyngeal walls III. inferior parathyroid, thymus gland IV. superior parathyroid V. ultimobranchial body

Question 31

what cranial nerve enters the mandibular arch (1st arch)

Answer 31

V- trigeminal

Question 32

what cranial nerve enters the hyoid arch (2nd arch)

Answer 32

VII- facial

Question 33

what cranial nerve enters the 3rd arch

Answer 33

IX- glossopharyngeal

Question 34

what cranial nerve enters the 4th arch

Answer 34

X- vagus

Question 35

what cranial nerve enters the 5th arch

Answer 35

XI- spinal accessory

Question 36

the III arch vessels are the

Answer 36

common carotid arteries, which branch into the internal carotid arteries

Question 37

facial supply shifts from the internal carotid to the ___________

Answer 37

external carotid in the 7th week

Question 38

the IV arch vessel becomes the

Answer 38

dorsal aorta

Question 39

the VI arch vessel becomes the

Answer 39

pulmonary arteries

Question 40

what arch vessels disappear

Answer 40

I, II, V

Question 41

what aortic arch is associated with the 1st branchial arch

Answer 41

I

Question 42

what aortic arch is associated with the 2nd branchial arch

Answer 42

II

Question 43

what aortic arch is associated with the 3rd branchial arch

Answer 43

III

Question 44

what aortic arch is associated with the 4th branchial arch

Answer 44

IV

Question 45

what aortic arch is associated with the 5th branchial arch

Answer 45

VI

Question 46

what branchiometric muscles are associated with 3rd branchial arch

Answer 46

stylopharyngeus

Question 47

what branchiometric muscles are associated with the 4th branchial arch

Answer 47

laryngeal musculature, pharyngeal constrictors

Question 48

what branchiometric muscles are associated with the 5th branchial arch

Answer 48

sternocleidomastoid | trapezius

Question 49

neural crest cells develop from the

Answer 49

neuroectoderm

Question 50

neural crest cells migrate toward

Answer 50

mesenchyme and then differentiate