Early brain development

Question 1

Embryonic disk has 3 layers and they form?

Answer 1

Endoderm: internal organs
Mesoderm: bones & muscles
Ectoderm: nervous system & skin = neural plate

Question 2

Neural tube forms from

Answer 2

Ectoderm

Question 3

3 primary vesicles of neural tube and what they become

Answer 3

Prosencephalon: Forebrain
Mesencephalon: Midbrain
Rhombencephalon: Hindbrain

Question 4

Prosencephalon develops 2 secondary vesicles and what they become

Answer 4

Telencephalic: becomes cortex and nuclei and olfactory bulbs
Optic: becomes optic nerves and retina

Question 5

Mesencephalon differentiates into:

Answer 5

Tectum & tegmentum

Question 6

Metencephalon differentiates into:

Answer 6

Cerebellum

Pons

Question 7

Rhombencephalon differentiates into

Answer 7

Metencephalon

Myelencephalon

Question 8

Myelencephalon differentiates into

Answer 8

Medulla

Question 9

Differentiation of spinal cord into 4 things

Answer 9

Dorsal horn
Ventral horn
Intermediate Zone
White matter columns

Question 10

The PNS arises from

Answer 10

The neural crest

Question 11

The CNS arises from

Answer 11

The neural tube