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Chemical Coordination and Integration
Question
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Gonadotropin releasing hormone is transferred to anterior pituitary by

  • left coronary artery

  • hypophysial portal veins

  • axons of neurosecretory cells

  • nuclei of hypothalamus

Answer

B.

hypophysial portal veins

Hypothalamus is connected to the anterior lobe of pituitary gland by hypophysial portal veins. The latter carry blood containing neurohormones (releasing factors) from the hypothalamus to the anterior lobe of the pituitary.

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