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🔬 Biology  ·  Neural Control and Coordination  ·  NEET

Neurogenesis in adult brain primarily occurs in:

  • A All regions of the adult brain equally, with little regional specificity
  • B Subventricular zone (SVZ) and subgranular zone of hippocampal dentate gyrus
  • C Mainly within the granule cell layer of the cerebellum
  • D Mainly within nuclei located in the brainstem

Correct answer: B. Subventricular zone (SVZ) and subgranular zone of hippocampal dentate gyrus

Explanation: Adult neurogenesis: new neurons continuously produced from neural stem cells in SVZ (migrating to olfactory bulb) and SGZ of hippocampal dentate gyrus. Functional significance in learning and memory.

Concept context

Brain, spinal cord, neurons, reflex arcs, and sense organs.

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