Derivatives and their Origins

Question 0

Dorsal root ganglia

Answer 0

Neural crest, ectoderm

Question 1

Melanocytes

Answer 1

Neural crest, ectoderm

Question 2

Enteric nervous system

Answer 2

Neural crest, ectoderm

Question 3

Schwann cells

Answer 3

Neural crest, ectoderm

Question 4

Neural crest

Answer 4

Ectoderm

Question 5

Skin

Answer 5

Non-neuronal ectoderm

Question 6

Nails

Answer 6

Non-neuronal ectoderm

Question 7

Tooth enamel

Answer 7

Non-neuronal ectoderm

Question 8

Skeletal tissue

Answer 8

Mesoderm

Question 9

Connective tissue

Answer 9

Mesoderm

Question 10

Blood

Answer 10

Mesoderm

Question 11

Muscle

Answer 11

Mesoderm

Question 12

Notochord

Answer 12

Mesoderm

Question 13

Midline axial skeleton

Answer 13

Axial mesoderm (notochord)

Question 14

Somitomeres

Answer 14

Paraxial mesoderm

Question 15

Head mesenchyme

Answer 15

Somitomeres, paraxial mesoderm

Question 16

Somites

Answer 16

Paraxial mesoderm

Question 17

Sclerotome

Answer 17

Somites, paraxial mesoderm

Question 18

Vertebral body

Answer 18

Scleretome, somites, paraxial mesoderm

Question 19

Vertebral arch

Answer 19

Sclerotome, somites, paraxial mesoderm

Question 20

Dermamyotome

Answer 20

Somites, paraxial mesoderm

Question 21

Dermatome

Answer 21

Dermamyotome, somites, paraxial mesoderm

Question 22

Myotome

Answer 22

Dermamyotome, somites, paraxial mesoderm

Question 23

Fat and connective tissue of the neck and back (contribution to dermis)

Answer 23

Dermatome, dermamyotome, somites, paraxial mesoderm

Question 24

Muscles (dorsal epimere and ventral hypomere)

Answer 24

Myotome, dermamyotome, somites, paraxial mesoderm

Question 25

Urogenital structures

Answer 25

Intermediate mesoderm

Question 26

Lining of intra-embryonic coelum

Answer 26

Primitive body cavity | Lateral plate mesoderm

Question 27

Somatic (parietal) mesoderm

Answer 27

Lateral plate mesoderm

Question 28

Splanchnic (visceral) mesoderm

Answer 28

Lateral plate mesoderm

Question 29

Dermis

Answer 29

Somatic (parietal) mesoderm, lateral plate mesoderm

Question 30

Limbs

Answer 30

Somatic (parietal) mesoderm, lateral plate mesoderm

Question 31

Gut wall

Answer 31

Splanchnic (visceral) mesoderm, lateral plate mesoderm

Question 32

Vascular system

Answer 32

Splanchnic (visceral) mesoderm, lateral plate mesoderm

Question 33

Anterior end of gut tube

Answer 33

Buccopharyngeal membrane

Question 34

Posterior end of gut tube

Answer 34

Cloacal membrane

Question 35

Gut tube and associated structures

Answer 35

Endoderm

Question 36

Pharynx

Answer 36

Endoderm

Question 37

Respiratory tube

Answer 37

Endoderm

Question 38

Nucleus pulposus

Answer 38

Notochord (axial mesoderm)

Question 39

Annulus fibrosus

Answer 39

Sclerotome, somites, paraxial mesoderm

Question 40

Neural tube

Answer 40

Ectoderm

Question 41

Carotid arteries

Answer 41

3rd aortic arch

Question 42

Aortic arch

Answer 42

Left 4th aortic arch

Question 43

Brachiocephalic trunk

Answer 43

Right 4th aortic arch

Question 44

Left pulmonary artery

Answer 44

Proximal left 6th aortic arch

Question 45

Ductus arteriosus

Answer 45

Distal left 6th aortic arch

Question 46

Right pulmonary artery

Answer 46

Proximal right 6th aortic arch

Question 47

Middle ear and Eustachian tube

Answer 47

Pharyngeal pouch 1

Question 48

Tonsils

Answer 48

Pharyngeal pouch 2

Question 49

Thymus and inferior parathyroid

Answer 49

Pharyngeal pouch 3

Question 50

Superior parathyroid, parafollicular thyroid cells and larynx structures

Answer 50

Pharangeal pouch 4