Describe the controls over secretion of minero- and gluco-corticoids
What will be an ideal response?
The zona glomerulosa makes mineralocorticoids, mainly aldosterone, which causes Na+ reabsorption and K+ secretion by targeting the distal tubules of the kidney. Aldosterone release is controlled by the renin-angiotensin system or by direct activation of the adrenal cortex by elevated K+ levels. The zona fasciculata makes glucocorticoids, primarily cortisol. It plays a major role in glucose metabolism, elevating blood glucose levels as well influencing protein and lipid metabolism. Its release is controlled by the hypothalamic-anterior pituitary axis through the release of CRH and ACTH, respectively.
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Describe the differences between electrical and chemical synapses in terms of mechanisms and functional characteristics of transmission
What will be an ideal response?
In some severe cases, a person suffering from stomach ulcers may have surgery to cut the branches of the vagus nerve that innervates the stomach. How would this help the problem?
What will be an ideal response?
The laryngeal cartilage composed of elastic cartilage that prevents entry of solids or liquids into the larynx when swallowing is the
A) arytenoid cartilage. B) corniculate cartilage. C) cricoid cartilage. D) epiglottis. E) thyroid cartilage.
What term describes hormones that influence the secretion of other hormones?
A. Antagonistic B. Teratogen C. Tropic D. Mineralocorticoids E. Allosteric