Embryologic Derviatives

Question 0

Epithelial lining of the oral cavity

Answer 0

Surface ectoderm

Question 1

Anal canal below pectinate line

Answer 1

Surface ectoderm

Question 2

Sweat glands, parotid and mammary glands

Answer 2

Surface ectoderm

Question 3

Thymus

Answer 3

Endoderm

Question 4

Olfactory epithelium

Answer 4

Surface ectoderm

Question 5

Brain

Answer 5

Neuro ectoderm

Question 6

Retina

Answer 6

Neuro ectoderm

Question 7

Bones of the skull

Answer 7

Neural crest

Question 8

Lens of the eye

Answer 8

Surface ectoderm

Question 8

Optic nerve

Answer 8

Neuro ectoderm

Question 10

Mesoderm defects

Answer 10

VACTERL

Vertebral defects 
Anal atresia 
Cardiac defects 
Tracheal- esophageal fistula 
Renal defects 
Limb defects

Question 12

Gut tube epithelium ( anal canal before the pectinate line)

Answer 12

Endoderm

Question 13

Wall of gut tube

Answer 13

Mesoderm

Question 14

Eustachian tube

Answer 14

Endoderm

Question 15

PIA and arachnoid

Answer 15

Neural crest

Question 16

Sensory organs of the ears

Answer 16

Surface ectoderm

Question 18

Lower 2/3 of the vagina

Answer 18

Endoderm

Question 19

Spleen

Answer 19

Mesoderm - foregut mesentery

Question 20

Spinal cord

Answer 20

Neuro ectoderm

Question 21

Upper 1/3 of vagina

Answer 21

Mesoderm

Question 22

Dermis

Answer 22

Mesoderm

Question 23

Epithelium of the bladder and urethra

Answer 23

Endoderm

Question 24

Testes, ovaries

Answer 24

Mesoderm

Question 25

Wall bladder and urethra

Answer 25

Mesoderm

Question 26

Serous lining if body cavities

Answer 26

Mesoderm

Question 27

Epidermis

Answer 27

Surface epithelium

Question 27

Lungs , liver, gallbladder, pancreas

Answer 27

Endoderm

Question 28

Adenohypophysis

Answer 28

Surface ectoderm

Question 29

Parathyroid

Answer 29

Endoderm

Question 29

Thyroid follicular cells

Answer 29

Endoderm