Posterior pituitary lobe | anatomy | Britannica (original) (raw)

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hormones

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  In hormone: Hormones of the pituitary gland
  One is the neurohypophysis, which forms as a downgrowth of the floor of the brain and gives rise to the median eminence and the neural lobe; these structures are neurohemal organs. The other is the adenohypophysis, which develops as an upgrowth from the buccal cavity (mouth region) and…
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major references

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  In pituitary gland: Anatomy of the pituitary gland
  …abundant hormone-secreting epithelial cells, the posterior pituitary is composed largely of unmyelinated (lacking a sheath of fatty insulation) secretory neurons.
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  In pituitary gland: Posterior pituitary hormones
  The posterior lobe of the pituitary gland consists largely of extensions of processes (axons) from two pairs of large clusters of nerve cell bodies (nuclei) in the hypothalamus. One of those nuclei, known as the supraoptic nuclei, lies immediately above the optic tract, while the other…
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