Flashcards in Chap.20: HormoneNotes Deck (54)
What two polypeptide hormones does the posterior pituitary secrete?
oxytocin and ADH (also called arginine vasopressin)
ADH and oxytocin travel to the posterior pituitary by way of ________.
hyopthalamohypophysial nerve tract
What three things stimulate the thyroid gland to produce thyroid hormone?
- LOW serum IODIDE levels
-drugs interfering with the thyroid glands uptake of IODIDE from the blood
The release of norepinephrine stimulates which hormones to be secreted? What hormone is inhibited?
Secreted: TSH, GH, LH and FSH
Hyperphosphatemia leads to ___________.
Insulin's action in the cells includes the transport of __________, ________, and ________. _______ into the cell is also facilitated.
amino acids, potassium, and magnesium
Stress has been shown to increase ______ secretion.
__________ acts to lower serum calcium levels by inhibition of bone-reabsorbing osteoclasts.
Calcitonin aka thyrocalcitonin
The parathyroid glands produce ________, a regulator of serum calcium.
What is the purpose of TSH?
The purpose of TSH is to release stored thyroid hormone.
In the kidneys, ______ acts on its plasma membrane receptor in the distal and proximal tubules of the nephron.
What are the major products secreted by the adrenal medulla?
the catecholamines: epinephrine (adrenaline) and norepinephrine
_____ is the main regulator of cortisol secretion and adrenocortical growth.
The secretion of cortisol is regulated primarily by the ______ and the ________.
anterior pituitary gland
Where is corticotropin releasing hormone (CRH) produced and stored?
CRH is produced in several nuclei in the hypothalamus and is stored in the median eminence (inferior border of the hypothalamus)
Once released, CRH travels through the portal vessels to stimulate the production of _____ from proopiomelanocortin (POMC), beta-lipoprotein, gamma-lipoprotein, endorphins, and enkephalins by the anterior pituitary.
The term ______ refers to those steroid hormones that have direct effects on carbohydrate metabolism.
These hormones increase blood glucose concentration by promoting gluconeogenesis in the liver and by decreasing uptake of glucose into muscle cells, adipose cells, and lymphatic cells.
Aldosterone synthesis and secretion are stiumlated by _________.
The conversion of angiotensin I to angiotensin II is stimulated by the enzyme ___________.
angiotensin I-converting enzyme
The conversion of angiotensinogen to angiotensin I is stimulated by ________.
High levels of aldosterone may result in ________ and ________.
alkalosis and hypokalemia
In the kidney, _______ primarily acts on epithelial cells of the nephron collecting duct to increase sodium ion reabsorption.