Doctor insights on:
Does The Thalamus Secrete Hormones
A hormone (from greek ὁρμή, "impetus") is a chemical released by a cell or a gland in one part of the body that sends out messages that affect cells in other parts of the organism. Only a little amount of hormone is required to alter cell metabolism. In essence, it is a chemical messenger that transports a signal from ...Read more
Via the blood stream: Trh flows from the hypothalamus to the anterior(front) pituitary gland through a blood connection between them. ...Read more
Middle lobe of: Pituitary gland.Get a more detailed answer ›
A nexus..: Of tiny blood vessels between the two areas. ...Read more
Depends on case: If you mean suppressing the gland, such as using bromocryptine for a pituitary adenoma, it can help control the symtpoms and prolactinomas can shrink. For other tumors, this may not be the case art all - for metastases to the pituitary or for craniopharyngioma, addressing hormone function generally does not affect the tumor's growth, although hormone symptoms can be relieved quite a bit. ...Read moreSee 1 more doctor answer
Why does acetylcholine, an inhibitory neurotransmitter, cause the adrenal glands to release stimulatory hormones?
Not correct: Hi. Acetyl choline (ACh) is not an inhibitory neurotransmitter. The sympathetic nervous system uses ACh as the neurotransmitter in the sympathetic ganglia (the 1st synapse outside the CNS). Usually that's from one neuron to another, but in the adrenal medulla, the cells are really the second neuron, but they release their contents (catecholamines) into the blood, not onto an organ (like the heart) ...Read moreSee 1 more doctor answer
Inhibin: Inhibin, made by the gonadsGet a more detailed answer ›
With medication.: The adrenal glands produce androgenic hormones that can be blocked with medication. Aminoglutethimide, ketoconazole, abiraterone & tak-700 (orteronel) are examples, blocking the synthesis of steroid compounds in the glands. Other essential hormones that are blocked may need to be replaced. Surgical removal of both glands would also eliminate adrenal androgens, but it is not done for this purpose. ...Read more
Why does excess ADH (vasopressin) get released from the pituitary gland in the hypothalamus when you have lung cancer?
If the posterior pituitary only stores the ADH (vasopressin) the hypothalamus makes, how come ADH (vasopressin) doesn't go into the bloodstream when the hypothalamus is in tact?
Released by need: I'm not sure I understand what you mean. ADH (vasopressin) in fact, is secreted or released into the bloodstream from the post. pituitary. It is released according to demand and not before. So if you're asking why doesn't it "pour" out into the bloodstream then, that's the reason. There is a gating effect whereby NEED of the body (having to do mainly with sodium concentrations) signals the gate to open&close ...Read more
Adrenals: This is news to me. I cannot think of any physiologic reason. And any "enlargement" would not be noticeable on a scan. ...Read more
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