Wk 1) Development of the Nervous System Flashcards
Sample questions
What process occurs during postnatal development?
a) Neuron Death
b) Neurogenesis
c) Synaptogenesis
d) Axon Growth
Which one of the following is not a phase of neurodevelopment?
a) Induction of the Neural Plate
b) Migration
c) Preservation
d) Neural Proliferation
What are the symptoms of William’s Syndrome?
a) Low IQ
b) Severe attention problems
c) Poor Spatial abilities
d) All of the above
Which one of the following is a function of the Prefrontal cortex?
a) Planning ability
b) Processing auditory information
c) Sensation and Perception
d) Neural Proliferation
Which of the following statements regarding apoptosis are false?
a) Removes up to 50% of excess neurons produced in childhood
b) Microglia removes waste
c) Apoptosis only occurs in neurons
d) Cells can commit suicide based on internal signals
What type of cell specialization refers to a cells ability to develop into any class of cell in the body?
a) Multipotent
b) Pluripotent
c) Totipotent
d) Unipotent
What is the second stage of neurodevelopment?
a) Migration & Aggegation
b) Induction of the nerual plate
c) Neuroproliferation
d) Neuron death
Which 3 regions of the brain are formed from the hindbrain
a) The pons, cerebellum and medulla oblongata
b) The pons, cerebellum and myelencephalon
c) The Thalamus, hypothalamus and epithalamus
d) The occipital lobe, parietal lobe and the brain stem
What are the first two phases of neurodevelopment?
a) Induction of the neural plate, Migration & Aggregation
b) Induction of the neural plate, neural proliferation
what is necrosis?
a) tumour
b) neural-poison
c) brain disorder
d) passive cell death
Which of the following is not a phase of neurodevelopment?
a) neural proliferation
b) induction of the neural plate
c) Aggregation & migration
d) Synaptic fusion
Which of the following is/are true? I. Myelination increases speed of axonal conduction II. Rate of myelination varies across the brain, related to functional development III. Sensory regions myelinate in few first months IV. Myelination of higher-order association regions continues into adulthood
a) I, II, IV
b) I, II, III
c) I, III ,IV
d) I, II, III, IV
Radial glial cells are
a) Totipotent
b) Pluripotent
c) Multipotent
d) Unipotent
Which of the following is a false statement for chemoaffinity hypothesis?
a) Postsynaptic surface release a specific chemical label which attracts selective growing axons to the target
b) Used during development and regeneration
c) Axons always grow directly to its target
Which of the following emerge from neurons?
a) Axon
b) Dendrites
c) Axon and Dendrites
