Development of CNS and PNS

Question 1

During which week of embryological development does the CNS form?

Answer 1

3rd week

Question 2

Which type of embryological tissue forms the neural plate?

Answer 2

Ectoderm

Question 3

Name 8 derivatives of neural crest cell migration?

Answer 3

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

Question 4

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

Answer 4

Spina bifida

Question 5

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

Answer 5

Anencephaly

Question 6

What does the prosencephalon differentiate into?

Answer 6

Telencephalon and Diencephalon

Question 7

Which parts of the brain arise from the mesencephalon?

Answer 7

Tectum and Tegmentum

Question 8

What does the Rhombencephalon differentiate into?

Answer 8

Metencephalon and Myencephalon

Question 9

Which parts of the brain arise from the Telencephalon?

Answer 9

Cerebral cortex, Basal ganglia, Ventricles of the brain

Question 10

Which parts of the brain arise from the Diencephalon?

Answer 10

Thalamus, Hypothalamus

Question 11

Which parts of the brain arise from the Metencephalon?

Answer 11

Cerebellum

Question 12

Which parts of the brain arise from the Myencephalon?

Answer 12

Pons, Medulla

Question 13

What is the function of the Tectum?

Answer 13

Reflex response controll

Question 14

How many pairs of cranial nerves are there?

Answer 14

12

Question 15

How many pairs of spinal nerves are there?

Answer 15

31