TB3 Lecture 2 Brain Development

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  • Created by: mint75
  • Created on: 25-04-15 19:01

1. What does the process of myelinisation do/improve?

  • Insulates the cell and improves synaptogenesis (cell communication)
  • Allows cells to acquire specialised functions
  • Produces nerve cells at a rate of 250,000pm
  • Adds to the weight of the total brain
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Other questions in this quiz

2. What effects does the environment have on the prenatal brain?

  • The environment has not shown to have an effect on the PN brain
  • The PN brain is sensitive to negative and positive influences, with cortical thickness differing according to the environment
  • The PN brain is especially sensitive to positive environmental influences affecting cortical thickness
  • The PN brain is especially sensitive to negative environmental influences affecting cortical thickness

3. When does brain growth begin in utero?

  • 8 months
  • 18 days
  • 6 months
  • 14 days

4. What are the three stages (in order) of cellular development

  • Synaptogenesis, Myelinisation, Cell migration
  • Synaptogenesis, Cell migration, proliferation
  • Proliferation, cell migration, myelinisation
  • Myelinisation, Cell migration, proliferation

5. What is the darwinian reflex?

  • When a baby is held with their feet barely touching a surface, they will make stepping motions
  • When the palm of a babies hand is stroked, they make a strong fist and can be raised to standing if grasped
  • When a baby is dropped/hears a loud noise, they extend limbs and fingers whilst drawing their head back as a protective reflex
  • When a baby will grab anything that comes in close proximity to their face, a protective reflex


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