Development of CNS and PNS Flashcards Preview

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Flashcards in Development of CNS and PNS Deck (15)
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1
Q

During which week of embryological development does the CNS form?

A

3rd week

2
Q

Which type of embryological tissue forms the neural plate?

A

Ectoderm

3
Q

Name 8 derivatives of neural crest cell migration?

A
Dorsal root ganglia
Melanocytes
Odontoblasts
Parafollicular thyroid cells (secretes Calcitonin)
Adrenal medulla
Autonomic cell ganglia
Tracheal cartilage
Schwann cells
4
Q

Failure of closure of the caudal neuropore leads to which condition?

A

Spina bifida

5
Q

Failure of closure of the cranial neuropore leads to which condition?

A

Anencephaly

6
Q

What does the prosencephalon differentiate into?

A

Telencephalon and Diencephalon

7
Q

Which parts of the brain arise from the mesencephalon?

A

Tectum and Tegmentum

8
Q

What does the Rhombencephalon differentiate into?

A

Metencephalon and Myencephalon

9
Q

Which parts of the brain arise from the Telencephalon?

A

Cerebral cortex, Basal ganglia, Ventricles of the brain

10
Q

Which parts of the brain arise from the Diencephalon?

A

Thalamus, Hypothalamus

11
Q

Which parts of the brain arise from the Metencephalon?

A

Cerebellum

12
Q

Which parts of the brain arise from the Myencephalon?

A

Pons, Medulla

13
Q

What is the function of the Tectum?

A

Reflex response controll

14
Q

How many pairs of cranial nerves are there?

A

12

15
Q

How many pairs of spinal nerves are there?

A

31