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The relation of potassium salts to secretion in the pancreas and submaxillary glands

Robert Davies Defries

The relation of potassium salts to secretion in the pancreas and submaxillary glands

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Published .
Written in English


Edition Notes

Thesis (M.D.) -- University of Toronto, 1913

The Physical Object
Pagination1 v.
ID Numbers
Open LibraryOL19250032M

Why is the pancreas both an endocrine and exocrine gland? Endocrine organs release their products (usually hormones) directly into the blood. The pancreas contains islets of Langerhans which are made up of alpha and beta cells. Beta cells secrete insulin and alpha cells secrete glucagon. The islets of Langerhans monitor blood glucose concentration. hyperglycemia stimulates the secretion of which substance from the pancreas. Get Answer. Recently Asked Questions Critical Thinking: Atrophy of the Left Leg Muscles Discussion Forum Assignment Requirements For this assignment, you are being asked to use critical thinking; In what ways can a person lose heat to or gain heat from the surroundings. Chloride aids in fluid balance mainly because it follows sodium in order to maintain charge neutrality. Chloride channels also play a role in regulating fluid secretion, such as pancreatic juice into the small intestine and the flow of water into mucus. Fluid secretion /


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The relation of potassium salts to secretion in the pancreas and submaxillary glands by Robert Davies Defries Download PDF EPUB FB2

Abstract. Insulin secretion from pieces of rabbit pancreas incubated in vitro was studied in media of different ionic composition and in response to different substances added to the media. Experiments were performed which demonstrated that a sodium pump played a role in insulin secretion and that inhibition of the pump by ouabain, or by the omission of extracellular potassium Cited by: Exocrine glands, (exo = outside) such as sweat glands, salivary glands, and mucous glands, secrete fluids that are transported via ducts to their appropriate destinations and function within a particular body system.

Endocrine glands, (endo = within) on the other hand, constitute their own body williamblack.club are ductless and secrete chemicals, called hormones, directly into the blood. Start studying Pancreatic and Bile Secretion. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

• Stones form if bile contains insufficient bile salts or excessive cholesterol • Cholesterol crystallises. Treatment for gallstones Endocrine function of the pancreas. Pancreatic islets secrete insulin and.

The concentration of sodium and potassium remain constant at all secretory rates. Acetazolamide reduces the maximal rate of secretion markedly, and the maximal bicarbonate concentration slightly, but does not alter the reciprocal relationship between bicarbonate and chloride at slow rates of flow.

williamblack.club by: Pancreatitis is the inflammation, or irritation, of the pancreas; it can develop acutely or chronically over an extended period of time. The pancreas produces hormones that help in glucose metabolism and enzymes that aid in digestion; pancreatitis can interfere with the function of the pancreas, thereby interfering with pancreas-related processes.

In the isolated cat pancreas, stimulated maximally with secretin, increasing the perfusate potassium concentration (at the expense of sodium ions) caused a copious secretion of amylase from the gland, reduced the volume rate of secretion and caused vasoconstriction. williamblack.club by: Tubular secretion occurs at PCT and DCT; for example, at proximal convoluted tubule, potassium is secreted by means of sodium-potassium pump, hydrogen ion is secreted by means of active transport and co-transport, i.e.

antiporter, and ammonia diffuses. Sodium and Potassium Secretion by Iguana Salt GlandsAcclimation or Adaptation. salt glands among the lizard taxa and the extent to which different species can modify their sodium and potassium.

About 90% of the filtered potassium is reabsorbed in the early regions of the nephron (mainly from the proximal tubule).In order for potassium to appear in the urine, it must be secreted into later regions of the nephron williamblack.clubion of potassium occurs in the parts of the nephron that are sensitive to aldosterone—that is, in the late distal tubule and cortical collecting duct (fig.

Dec 01,  · We examined the response of the α and β-cells of the perfused rat pancreas to an elevation of potassium ion concentration and to the potassium ionophore, valinomycin (1 × Cited by: The parotid glands only generate a serous secretion whereas the submaxillary glands and the sublingual glands generate both serous and mucinous fluid.

Functional Histology Salivary Glands, regardless of their location, possess a grape-like architecture with acini that are drained by ducts that progressively join and thus transport saliva into.

Aldosterone, the main mineralocorticoid hormone, is a steroid hormone produced by the zona glomerulosa of the adrenal cortex in the adrenal gland. It is essential for sodium conservation in the kidney, salivary glands, sweat glands and colon.

It plays a central role in the homeostatic regulation of blood pressure, plasma sodium (Na +), and potassium (K +) williamblack.club Number: Modulation of the secretion of potassium by accompanying anions in humans.

In animals, secretion of potassium (K) in the cortical collecting duct (CCD) is modulated by Cited by: Feb 04,  · The pancreas is really two glands that are intimately mixed together into one organ. The bulk of the pancreas is composed of “exocrine” cells that produce enzymes to help with the digestion of food.

These exocrine cells release their enzymes into. Transepithelial bicarbonate secretion is mediated by a coordinated function of transporters in epithelial cells, whereby transporters in the basolateral membrane absorb bicarbonate from the blood and those in the apical membrane secrete bicarbonate to the luminal space of hollow viscus or exocrine williamblack.club: Hyun Woo Park.

A new understanding of renal potassium balance has emerged as the molecular underpinnings of potassium secretion have become illuminated, highlighting the key roles of apical potassium channels, renal outer medullary potassium channel (ROMK) and Big Potassium (BK), in the aldosterone-sensitive distal nephron and collecting williamblack.club by: Potassium is the main intracellular ion for all types of cells, while having a major role in maintenance of fluid and electrolyte balance.

Potassium is necessary for the function of all living cells, and is thus present in all plant and animal tissues. It is found in especially high concentrations within plant cells, and in a mixed diet, it is most highly concentrated in fruits.

The high. Jun 01,  · The exocrine pancreas secretes throughout 24 hours. In both interdigestive and postprandial states, pancreatic secretion is regulated by neural and hormonal actions, and neurohormonal interactions.

At the turn of this century, the prevailing theory of Pavlov (1) that pancreatic exocrine secretion was exclusively regulated by secretory fibers in both vagi and splanchnic nerves Cited by: Pages where the terms "Historic Textbook" and "Historic Embryology" appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of williamblack.club means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the.

Dec 04,  · The endocrine glands are those which do not possess any duct and discharge their secretion (hormones) directly into the blood stream to send them to the various parts of the body.

The endocrine glands and their secretion (hormones) constitute the endocrine system which along with nervous system coordinates the activity of various parts of the williamblack.club: Sastry. Endocrine System Working together The pancreas is actually made up of two glands with some endocrine cells and some cells that help complete digestion.

The non-endocrine cells secrete pancreatic juice into the digested food leaving the stomach to raise the (Na+) and potassium (K+) in the body and helps regulate blood pressure and volume. T1 - Pathophysiology of potassium absorption and secretion by the human intestine.

AU - Agarwal, Rajiv. AU - Afzalpurkar, Rekha. AU - Fordtran, John S. PY - Y1 - N2 - When normal people ingest 90 mEq/day of K+ in their diet, they absorb about 90% of intake (81 mEq) and excrete an equivalent amount of K+ in the williamblack.club by: Ion Secretion by Salt Glands of Desert Iguanas ([ITAL]Dipsosaurus dorsalis[/ITAL]) NaCl, KCl, and organic salts of potassium increased secretion.

Jul 24,  · Q: the addition of potassium iodide as a nutritional supplement to common table salt would most directly affect the function of which of these glands. A: thyroid I know the thyroid gland produces thyroid hormones (i.e throxin) which is necessary for growth and neurological development in children.

Study Bio Review Questions flashcards from hi j. on StudyBlue. Secretion of insulin from the pancreas is increased in response to Small droplets of digested lipids surrounded by bile salts are called chylomicrons.

micelles. monoglycerides. diglycerides. lacteals. Feb 24,  · pancreas is considered both an endocrine and exocrine gland because it is both a ductless as well as a duct williamblack.club a ductless gland,it has special groups of hormone secreting cells called islets of langerhams,which are scattered in the substance of entire williamblack.clube of this property it is known endocrine gland.

When normal people ingest 90 mEq/day of K+ in their diet, they absorb about 90% of intake (81 mEq) and excrete an equivalent amount of K+ in the urine. Normal fecal K+ excretion averages about 9 mEq/day. The vast majority of intestinal K+ absorption occurs in the small intestine; the contribution of the normal colon to net K+ absorption and secretion is williamblack.club by: fluids.

Solutions of salts containing one or more of the following ions: sodium, potassium, calcium, magnesium, chloride, and phos- phate were injected into the blood stream and the composition of the serum and pancreatic juice before and after injection was determined.

Methods. Nov 05,  · The human colon has the capacity to secrete potassium (K+) ions and enhanced K+ secretion is a feature of a variety of diarrhoeal diseases.

with only the latter exhibiting an excess of goblet cells. 6 Bile salts stimulate the parallel secretion of mucus and K + in guinea pig colon, 32 which raises the interesting possibility that the watery Cited by: Substance P (SP) belongs to the family of tachykinin which are structurally related peptides.

They are mainly found in non-mammalian tissues with the exception of SP [1]. Two tachykinin related Cited by: 1. Hormones and Exercise Endocrine System • 3 Components: – Host organ – Hormones – Target (receptor) cells or organs Types of Glands • Endocrine gland – secrete hormones that diffuse into the bloodstream.

• Exocrine gland – have secretory ducts that lead directly to specific compartment or surface that requires the hormone; e.g. sweat glands and glands of upper digestive tract. The Pancreas: Introduction and Index. As chyme from the stomach floods into the small intestine, two things must happen: gastric acid must be quickly and efficiently neutralized to prevent damage to the duodenal mucosa; macromolecular nutrients - proteins, fats and starch - must be broken down much further before their constitutents can be absorbed through the mucosa into blood.

Study 40 CARLA 15 flashcards from Ryan Y. on StudyBlue. To increase the absorptive efficiency of the small intestine, the surface area of the mucosa is increased by the presence of folds in the wall called _____, and projections of the cell membrane called _____.

Jul 19,  · Pancreas is known as a mixed gland because it performs functions of both exocrine and endocrine glands. It has both exocrine and endocrine cells. Exocrine cells secrete Pancreatic juice and endocrine cells secrete insulin and glucagon. "Please check your email for instructions on resetting your password.

If you do not receive an email within 10 minutes, your email address may not be registered, and Cited by: Dietary potassium intake normally varies between 40 and mEq/day. In the steady state, fecal losses are usually close to 10% of intake.

The remaining 90% is excreted in the urine, so alternations in renal potassium secretion greatly affect potassium balance. Levels must bekept in a proper (homeostatic) balance for the maintenance of health.

The normal concentration of potassium in the serum is in the range of to mM. Hyperkalemia refers to serum or plasma levels of potassium ions above mM.

Hypokalemia means serum or plasma levels of potassium ions that fall below mM. The pancreas is a mixed gland because it has both endocrine and exocrine functions. As an endocrine gland, it secretes hormones into the bloodstream.

Only one percent of the weight of the pancreas serves as an endocrine gland. The remaining 99 percent of the gland has exocrine functions. Renal Secretion & pH Control Topics for today: • Renal secretion of potassium • Examples of solute clearance rates • Hormones affecting kidney function • Counter current concentration mechanism • Renal mechanisms of pH control • Buffer mechanisms Active secretion Various substances are actively transported across the basal surface.

chemical digestion of food and bicarbonate ions that neutralize the hydrochloric acid in chyme. The pancreas synthesizes digestive enzymes and bicarbonate and secretes them into the ____ small _____ intestine.

Describe the function of the following digestive enzymes. trypsin-hydrolyzes protein into peptides lipase-breaks triglyceride molecules into fatty acids and glycerol pancreatic amylase. Low potassium pancreas neoplasm cyst Lymphoma low potassium All the information, content and live chat provided on the site is intended to be for informational purposes only, and not a substitute for professional or medical advice.6.

Myxoedema, lack of energy, obesity and bradycardia are all clinical signs of.An intestinal hormone that stimulates mucus secretion by the submucosal duodenal glands and dilation of intestinal capillaries is?

The intestinal hormone that stimulates the pancreas to release a watery, bicarbonate-rich fluid is? Secretin. An intestinal hormone that stimulates contraction of the gallbladder to release bile is?.