Endocrine glands - Pituitary gland
3 important questions on Endocrine glands - Pituitary gland
What does the anterior pituitary secrete and how are they called?
It secretes releasing hormones that are called tropic hormones because they stimulate various physiological processes by acting directly on target tissues or by causing other endocrine glands to release hormones.
How do neurohormones from the hypothalamus reach the anterior pituitary (adenohypophysis)?
Via the portal system, a closed blood circuit in which 2 beds of capillaries (1 in the hypothalamus and 1 in the anterior pituitary) are connected by a vein.
How are oxytocin and vasopressin transported in the posterior pituitary?
They are transported down the axons and stored in vessels at the axon terminals, from which they are released in response to neural impulses and enter the bloodstream.
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