Development of CNS

Question 1

Ectoderm - 2 types

Answer 1

Surface and neuroectoderm

Question 2

Neural groove is formed by

Answer 2

Neuroectoderm

Question 3

NCC derived from

Answer 3

Ectoderm.

Question 4

Cranial neuropore closes by

Answer 4

25th D

Question 5

Caudal neuropore closes by

Answer 5

28th D

Question 6

Failure of closure of Cranial neuropore

Answer 6

Anencephaly

Question 7

Failure of closure of Caudal neuropore

Answer 7

Rachischisis

Question 8

Rachischisis

Answer 8

Failure of closure of Caudal neuropore

Question 9

Remnant of Cranial neuropore

Answer 9

Lamina terminalis

Question 10

Lamina terminalis is remnant of

Answer 10

Cranial neuropore

Question 11

Remnant of Caudal neuropore

Answer 11

Terminal ventricle

Question 12

Terminal ventricle is a Remnant of

Answer 12

Caudal neuropore

Question 13

Primary vesicles of brain

Answer 13

Prosencephalon
Mesencephalon
Rhombencephalon

Question 14

Cranial part of NT forms

Answer 14

Brain

Question 15

Caudal part of NT forms

Answer 15

Spinalcord

Question 16

Secondary vesicles of brain are

Answer 16

Telen, Dien, Mesen, Meten and Mylencephalon.

Question 17

Telencephalon gives rise to

Answer 17

Cerebral cortex and Corpus striatum

Question 18

Cerebral cortex and Corpus striatum - derived from

Answer 18

Telencephalon

Question 19

Thalamus, hypothalamus, Metathalamus, Epithalamus, Pars Nervosa and Optic stalk are derived from which vesicle

Answer 19

Diencephalon

Question 20

Diencephalon gives rise to

Answer 20

Thalamus, hypothalamus, Metathalamus, Epithalamus, Pars Nervosa and Optic stalk

Question 21

Optic stalk gives rise to

Answer 21

Retina and optic nerve

Question 22

Pons and cerebellum are derived from which vesicle

Answer 22

Metencephalon

Question 23

Metencephalon gives rise to

Answer 23

Pons and cerebellum

Question 24

Myelencephalon gives rise to

Answer 24

medulla

Question 25

Medulla derived from

Answer 25

Myelencephalon

Question 26

Cavity in Telencephalon

Answer 26

Lateral ventricles

Question 27

Cavity in Diencephalon

Answer 27

3rd ventricle

Question 28

Cavity in Mesencephalon

Answer 28

Aqueduct of Sylvius

Question 29

Cavity in Meten and myelencephalon

Answer 29

4th ventricle

Question 30

Medial geniculate body is present in

Answer 30

Metathalamus of Diencephalon

Question 31

Substantia nigra

Answer 31

Mesencephalon

Question 32

Entire NT open - condition is called as

Answer 32

Craniorachischisis

Question 33

Craniorachischisis

Answer 33

Entire NT open

Question 34

Most severe form of NTD

Answer 34

Craniorachischisis