Development of CNS

Description

Quiz on Development of CNS, created by Charlotte Kamrath on 29/05/2021.
Charlotte Kamrath
Quiz by Charlotte Kamrath, updated more than 1 year ago
Charlotte Kamrath
Created by Charlotte Kamrath about 3 years ago
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Resource summary

Question 1

Question
Central nervous system development:
Answer
  • Is derived from Ectoderm
  • Is derived from Endoderm
  • Is derived from Mesoderm
  • Develops from neuroectoderm
  • Formation of neural plate and neural tube is known
  • Melanocytes derived from neural crest cells
  • Melanocytes are derived from Endoderm
  • The first stage includes formation of neural plate
  • The first stage includes formation of neural tube

Question 2

Question
Central nervous system development:
Answer
  • CNS appears at the beginning of the third week of embryo age
  • CNS appears at the beginning of the sixth week of embryo age
  • CNS appears at the beginning of the 10th week of embryo age
  • Part of ectoderm differentiates into neuroectoderm
  • all of the ectoderm differentiates into neuroectoderm
  • The cranial open end of the tube is the anterior (rostral) neuropore
  • the caudal open end of the tube is the posterior (caudal) neuropore
  • the cranial open end of the tube is the posterior (caudal) neuropore
  • The caudall open end of the tube is the anterior (rostral) neuropore

Question 3

Question
Which glial cells differentiate from neuroectoderm?
Answer
  • Ependymal cells
  • Schwann cells
  • Satellite cells
  • Fibrous astrocytes
  • Microglia

Question 4

Question
From the neural crest arise:
Answer
  • Melanocytes
  • C-cells of thyroid gland
  • Schwann cells
  • Medulla of adrenal gland
  • Mesenchyme of the pharyngeal arches
  • Adenohypophysis
  • Parathyroid

Question 5

Question
Mark proper pairs (structure and time of development):
Answer
  • Closure of neuroporus anterior – 25th day of pregnancy
  • Closure of neuroporus posterior – 28th day of pregnancy
  • Neural plate – 17th day of pregnancy
  • Neural plate – 36th day of pregnancy
  • Neural groove – 18th-21st day of pregnancy
  • Neural tube and Neural crest – 21st day
  • Neural tube and Neural crest – thst day
  • Closure of neuroporus anterior - 28th day of pregnancy
  • Closure of neuroporus posterior – 25th day of pregnancy
  • Neural groove - 15th day of pregnancy

Question 6

Question
Find true sentence regarding the development of the nervous system:
Answer
  • Schwann cells derived from neural crests
  • Schwann cells derived from mesenchyme
  • Neural plate appears in 17th day
  • Neural plate appears in 21st day
  • Neurons of CNS derived from neural tube
  • Neurons of CNS derived from neural crest
  • Melonocytes derived from wall of neural crest
  • Melonocytes derived from ectoderm
  • Neural groove (neurolation) – 18-21st day
  • Neural groove (neurolation) – 25-28th day
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