This third order system features negative feedback between the downstream target endocrine organs. Structure a. Neurohypophysis i. Derived from neuroectoderm ii. Derived from epidermal ectoderm ii. Neurons synapse on capillaries in capillary bed in median eminence.
Capillaries converge to form venules.
Venules branch to form second capillary bed in the anterior pituitary. Conservation of water in terrestrial vertebrates. Kidneys are inhibited from producing urine. Epithelia becomes more permeable to water. This makes it easier for water to enter the body from the outside.