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Phase 1 > Neuro embryology > Flashcards

Neuro embryology Flashcards

1
Q

What are the three primary vesicles?

A

Prosencephalon (Forebrain)
Mesencephalon (Midbrain)
Rhombencephalon (Hindbrain)

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2
Q

What are the 5 secondary vesicles?

A 
Telencephalon
Diencephalon
Mesencephalon
Metencephalon 
Myelencephalon
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3
Q

At what week do primary vesicles begin to form?

A

3-4 weeks

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4
Q

At what week do secondary vesicles form?

A

5 weeks

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5
Q

What secondary vesicles forms from the prosencephalon?

A

Telencephalon

Diencephalon

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6
Q

What secondary vesicles form from the rhombencephalon?

A

Metencephalon

Myelencephalon

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7
Q

What neural derivatives form from the telencephalon?

A

Cerebral hemispheres and globus pallidus

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8
Q

What cavity derivatives form from the telencephalon?

A

Lateral ventricles

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9
Q

What neural derivatives form from the diencephalon?

A

Thalamus, hypothalamus and epithalamus

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10
Q

What cavity derivatives form from the diencephalon?

A

Third ventricle

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11
Q

What neural derivatives form from the mesencephalon?

A

Midbrain

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12
Q

What cavity derivatives form from the mesencephalon?

A

Cerebral aqueduct

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13
Q

What neural derivatives form from the metencephalon?

A

Pons and cerebellum

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14
Q

What cavity derivatives form from the metencephalon?

A

Upper part of 4th ventricle

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15
Q

What neural derivatives form from the myelencephalon?

A

Medulla

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16
Q

What cavity derivates form from the myelencephalon?

A

Lower part of 4th ventricle/ central canal

17
Q

Out of which layer does the notochord form?

A

Mesoderm

18
Q

What does the notochord secrete and why?

A

Growth factors which stimulate the differentiation of the overlying ectoderm into neuroectoderm forming the neural plate

19
Q

What is the neural crest?

A

Some cells within the neural folds that migrate to form the neural crest

20
Q

What cells form from the neural crest?

A

Melanocytes, craniofacial cartilage and bone, smooth muscle, peripheral and enteric neurons and glia

21
Q

What is neurulation?

A

The formation of the neural tube

22
Q

When does neuralation occur?

A

The 4th week of development

Phase 1 (41 decks)

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