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6. What is the role of the limbic system?
- Processing auditory and visual stimuli
- Abstract thought
- Regulating emotions and frontal lobes for advanced cognitive functioning
- Reflexes and responses to stress
7. What effect does an enriched environment have on the cerebral cortex?
- The cerebral cortex increases in width with age allowing the infant to absorb more information
- It causes the cortical neurons to thicken as the infant is exposed to more sights and sounds.
- Aids in developing the infants vision and attention management
- Aids in developing muscle tone and balance
8. What is the second stage of brain development?
- Neurogenesis and cell migration
- Cell insulation
- Folding of the neural plate to form the neural tube
- The formation of the hindbrain
9. 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 especially sensitive to negative environmental influences affecting cortical thickness
- 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
10. What is the 'moro' reflex?
- When a baby will grab anything that comes in close proximity to their face, a protective reflex
- 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 is held with their feet barely touching a surface, they will make stepping motions
11. When does brain growth begin in utero?
- 8 months
- 14 days
- 18 days
- 6 months
12. What is apoptosis and why does it occur?
- The formation of sulci and gyri to accommodate more neurons
- Programmed cell death of poorly stimulated neurons; increases efficiency of functioning
- Increase of brain surface; to increase cell stimulation
- Buildings of connections between synapses to 'finely tune' the brains 'circuitry'
13. What fatty layer covers the axon of the neuron?
- Myelin Sheath
- Axon Sheath
14. What are the main characteristics of fetal alcohol syndrome?
- Physical defects (e.g flat midface, microcephaly, micrognathia), growth retardation and CNS difficulties
- Growth retardation (e.g low birth weight) and balance and hearing issues
- CNS issues (e.g learning/behaviourla disorders), Growth retardation emotional disturbances and
- Small hippo-campus and other physical defects (e.g flat midface, microcephaly, micrognathia)
15. Which is the last brain area to stop growing?
- The prefrontal cortex
- The cortex
- The cerebral cortex
- The limbic system
16. Which two areas are the first to develop?
- Cerebral cortex and Brainstem (Hindbrain)
- Medulla and forebrain
- Brainstem (hindbrain) and midbrain
- Midbrain and forebrain
17. What are the three stages (in order) of cellular development
- Synaptogenesis, Cell migration, proliferation
- Proliferation, cell migration, myelinisation
- Synaptogenesis, Myelinisation, Cell migration
- Myelinisation, Cell migration, proliferation
18. As the cortex grows, what happens to the brain?
- Infolding to accommodate rapid growth
- Vesicles develop
- Synaptic pruning
- Synaptogenesis occurs
19. What stage of pregnancy were women most vunerable to radiation?
- 1 month
- 16 - 24 weeks
- 8 - 16 weeks
- 4 months
20. Why is the pregnant person most sensitive to radiation at this time?
- As this is the period in which synaptogenesis occurs
- This is the critical period of prenatal brain development, with neural proliferation and migration, migration not occuring correctly has serious effects
- As the infants developing brain is at peak plasticity