Embryology

Question 1

Which aortic arch? Maxillary artery

Answer 1

1st

Question 2

Which aortic arch? Carotid Artery

Answer 2

3rd

Question 3

Which aortic arch? Aortic arch

Answer 3

4th

Question 4

Which aortic arch? Stapedial and Hyoidal arteries

Answer 4

2nd

Question 5

Which aortic arch? Pulmonary arteries

Answer 5

6th

Question 6

Which aortic arch? Proximal right subclavian artery

Answer 6

4th

Question 7

Which aortic arch? Ductus arteriosus

Answer 7

6th

Question 8

Which germ tissue? Branchial clefts

Answer 8

Ectoderm

Question 9

Which germ tissue? Branchial arches

Answer 9

Mesoderm

Question 10

Which germ tissue? Branchial pouches

Answer 10

Endoderm

Question 11

Which branchial structure? external auditory meatus

Answer 11

1st cleft

Question 12

Which branchial structure? Muscles of Mastication

Answer 12

1st arch

Question 13

Which branchial structure? CN IX

Answer 13

3rd arch

Question 14

Which branchial structure? CN V2 and V3

Answer 14

1st arch

Question 15

Which branchial structure? Stapes

Answer 15

2nd arch

Question 16

Which branchial structure? Lesser horn of hyoid

Answer 16

2nd arch

Question 17

Which branchial structure? Greater horn of hyoid

Answer 17

3rd arch

Question 18

Which branchial structure? CN VII

Answer 18

2nd arch

Question 19

Which branchial structure? Tensor tympani

Answer 19

1st arch

Question 20

Which branchial structure? Stapedius

Answer 20

2nd arch

Question 21

Which branchial structure? CN X

Answer 21

4th/6th arches

Question 22

Which branchial structure? Styloid process

Answer 22

2nd arch

Question 23

Which branchial structure? Pharyngeal constrictors

Answer 23

4th arch

Question 24

Which branchial structure? Thyroid and cricoid cartilage

Answer 24

4th/6th arches

Question 25

Which branchial structure? Platysma

Answer 25

2rd arch

Question 26

Which branchial structure? Stylopharyngeus

Answer 26

3rd arch

Question 27

Which branchial structure? Muscles of facial expression

Answer 27

2nd arch

Question 28

Which branchial structure? Intrinsic muscle of larynx (exc. cricothyroid)

Answer 28

6th arch

Question 29

Which branchial structure? Eustachian tube

Answer 29

1st pouch

Question 30

Which branchial structure? inferior parathyroid glands

Answer 30

Dorsal 3rd pouch

Question 31

Which branchial structure? Mastoid air cells

Answer 31

1st pouch

Question 32

Which branchial structure? Tonsils

Answer 32

2nd pouch

Question 33

Which branchial structure? Thymus

Answer 33

Ventral 3rd pouch

Question 34

Which branchial structure? Superior parathyroid glands

Answer 34

Dorsal 4th pouch

Question 35

Which genital precursor? glans penis

Answer 35

Genital tubercle

Question 36

Which genital precursor? Ventral shaft of penis

Answer 36

Urogenital folds

Question 37

Which genital precursor? Prostate gland

Answer 37

Urogenital sinus

Question 38

Which genital precursor? Corpus cavernosum and spongiosum

Answer 38

Genital tubercle

Question 39

Which genital precursor? Bulbourethral glands

Answer 39

Urogenital sinus

Question 40

Which genital precursor? Labia minora

Answer 40

Urogenital folds

Question 41

Which genital precursor? glans clitoris

Answer 41

Genital tubercle

Question 42

Which genital precursor? Vestibular bulbs

Answer 42

Genital tubercle

Question 43

Which genital precursor? Bartholin and Skene glands

Answer 43

Urogenital sinus

Question 44

____spadias: failure of _____ to fuse

Answer 44

hypo; urethral folds

Question 45

____spadias: abnormal opening due to faulty positioning of _______

Answer 45

epi; genital tubercle