What three tubular structures empty into the upper small intestine and the fluids they produce?
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The gastric glands are of three kinds: (a) pyloric, (b) cardiac, and (c) fundus or oxyntic glands\n\n HCl used to break up large food items into smaller pieces by dissolving intercellular substances\n\n            also serves as immunological barrier and to activate gastric enzymes (e.g., pepsinogen to pepsin)\n\n      enzymatic digestion - enzymes used to cleave specific molecules\n\n            enzymes produced by salivary glands, stomach, small intestine and pancreas \n\n      fermentation – occurs in colon and distal ileum\n\n            use of symbiotic microorganisms (bacteria and protozoans) which give off by-products useful to the host (e.g., vitamin K)
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It goes into the small intestines which absorbs it into the bloodstream
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inside the inner ear,there are 3 semicircular canals,uttricles,succulus and cochlea which are collectively called MEMBRANEOUS LABYRINTH..\nthe space around membranous labyrinth contains a fluid called PERILYMPH while  inside it is another fluid called ENDOLYMH..the 3 semicircular canals,uttricles and succulus are required for maintaining balance and posture..\nthe former responses to changes in direction while latter to changes in posture.\nany defect in these causes dizziness and loss of balance.\n\ni hope it shud be clear to you..
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The short answer is the small intestine. The small intesting does the primary job of absorption, absorbing the nutrients (i.e., proteins, carbohydrates, lipids, vitamins [water and fat soluble], water and electrolytes. However, the large intestine does absorb the remaining additional water, vitamin B, and some electrolytes.\n\nLike I said, that is the short answer...if you need additional information let me know!
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1.Closed circulatory system with 5 aortic arches \n2.Complete specialized digestive tract\n3.Regeneration of lost parts
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1.heart\nMain component of the circulatory system. It pumps blood to spread oxygen and nutrients to all over the body and to get some of the waste.\n2.Lungs\nTo take oxygen and put it in the blood.\n3Liver\nCleans toxins out of your body.\n4Kidneys\nThis one is my weakest answer - I know it helps filter your urine in some way.\n5.Stomach and intestines\nAbsorb nutrients from food.\n6.Mucles\nTo move.\n7.brain\nTo control the body.\n8.Bladder\nSo you don't piss yourself.
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Introductory Anatomy: Digestive System\nDr D.R.Johnson, Centre for Human Biology\nPurpose\n\nThe digestive system prepares food for use by hundreds of millions of body cells. Food when eaten cannot reach cells (because it cannot pass through the intestinal walls to the bloodstream and, if it could would not be in a useful chemical state. The gut modifies food physically and chemically and disposes of unusable waste. Physical and chemical modification (digestion) depends on exocrine and endocrine secretions and controlled movement of food through the digestive tract.\n\nMouth\n\nMouth Food enters the digestive system via the mouth or oral cavity, mucous membrane lined. The lips (labia) protect its outer opening, cheeks form lateral walls, hard palate and soft palate form anterior/posterior roof. Communication with nasal cavity behind soft palate. Floor is muscular tongue. Tongue has bony attachments (styloid process, hyoid bone) attached to floor of mouth by frenulum.\nPosterior exit from mouth guarded by a ring of palatine/lingual tonsils. Enlargement = sore throat, tonsillitis. \nFood is first processed (bitten off) by teeth, especially the anterior incisors. Suitably sized portions then retained in closed mouth and chewed or masticated (especially by cheek teeth, premolars, molars) aided by saliva Ducted salivary glands open at various points into mouth. This process involves teeth (muscles of mastication move jaws) and tongue (extrinsic and intrinsic muscles). Mechanical breakdown, plus some chemical (ptyalin, enzyme in saliva). Taste buds allow appreciation, also sample potential hazards (chemicals, toxins)\n\nSwallowing\n\nIn leaving the mouth a bolus of food must cross the respiratory tract (trachea is anterior to oesophagus) by a complicated mechanism known as swallowing or deglutination which empties the mouth and ensures that food does not enter the windpipe. \nSwallowing involves co-ordinated activity of tongue, soft palate pharynx and oesophagus. The first (buccal) phase is voluntary, food being forced into the pharynx by the tongue. After this the process is reflex. The tongue blocks the mouth, soft palate closes off the nose and the larynx rises so that the epiglottis closes off the trachea. Food thus moves into the pharynx and onwards by peristalsis aided by gravity. If we try to talk whilst swallowing food may enter the respiratory passages and a cough reflex expels the bolus.\n\nOesophagus\n\nThe oesophagus (about 10") is the first part of the digestive tract proper and shares its distinctive structure. Basic tissue layers of the gut are \n1. mucosa. Innermost, moist lining membrane. Epithelium (friction resistant stratified squamous in oesophagus, simple beyond) plus a little connective tissue and smooth muscle. \n2. submucosa. Soft connective tissue layer, blood vessels, nerves, lymphatics \n3. muscularis externa. Typically circular inner layer, longitudinal outer layer of smooth muscle \n4. serosal fluid producing single layer.\n\nStomach\n\nC shaped, left side abdominal cavity (because liver is on right). Cardioesophageal sphincter guarding entrance from oesophagus is of doubtful anatomical integrity (though functionally the diaphragmatic pinch cock serves). Pyloric sphincter guarding the outlet is much better defined. Fundus, body and pylorus recognised as distinct regions. Stomach secretes both acid and mucus (for self protection). Surface area increased by rugae. Serves as a temporary store for food which is also churned by muscular layers (three here) to form chyme, creamy substance voided via pyloric sphincter to duodenum\n\nDuodenum\n\nFirst part of small intestine. C shaped 10" long and curves around head of pancreas and entry of common bile duct (accessory organs of digestion, pancreas, liver see below). Chemical degradation of small controlled amounts of food controlled by pyloric sphincter begins here, enzymes secreted by pancreas and duodenum itself aided by emulsifying bile (which also
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The small intestine is a long, narrow, coiled tube extending from the stomach to the large intestine. This is the place where most digestion and absorption of food takes place. The small intestine of a human can be as long as six to eight meters long (20-26 feet), depending on age and size of being. So much length can be compacted into so little space because of the nature of the small intestine; it is coiled and takes up less space, while maintaining it's enormous surface area.\n\nThe large intestine is the posterior or end of the human intestine that consists of four regions the, the cecum, the colon, the rectum and the anal canal. The large intestine is wider but shorter than the small intestine. It measures approximately 1.5 meters (5 feet) in length and its primary function is to absorb water and electrolytes that have already passed unabsorbed through the small intestine.\n\nTogether - the intestines range in length anywhere from 25 - 31 feet.
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How is food carried on through the alimentary canal? Simple.\n\nThrough the process of peristalsis. Peristalsis is crudely defined as the waves of involuntary muscle contractions that transport food, waste matter, or other contents through a tube-shaped organ such as the intestine.\n\nMicrosoft® Encarta® Reference Library 2004. © 1993-2003 Microsoft Corporation. All rights reserved.
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The digestive system begins with the mouth and extends through the esophagus, stomach, small intestine, and large intestine, ending with the rectum and anus. Other organs in this system include the liver, pancreas, gallbladder, and appendix.\nThe large and small intestines are between 25 and 28 feet long.
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frogs have a cloaca, a single reservoir for both urine and feces.  Fortunately in humans these are divided so we have one opening for urine and another for feces.
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Each kidney receives its blood supply from the renal artery, two of which branch from the abdominal aorta. Upon entering the hilum of the kidney, the renal artery divides into smaller interlobar arteries situated between the renal papillae. At the outer medulla, the interlobar arteries branch into arcuate arteries, which course along the border between the renal medulla and cortex, giving off still smaller branches, the cortical radial arteries (sometimes called interlobular arteries). Branching off these cortical arteries are the afferent arterioles supplying the glomerular capillaries, which drain into efferent arterioles. Efferent arterioles divide into peritubular capillaries that provide an extensive blood supply to the cortex. Blood from these capillaries collects in renal venules and leaves the kidney via the renal vein. Efferent arterioles of glomeruli closest to the medulla (those that belong to juxtamedullary nephrons) send branches into the medulla, forming the vasa recta. Blood supply is intimately linked to blood pressure.\n\n\n[edit] Nephron\n \n1. Renal pyramid\n2. Efferent artery\n3. Renal artery\n4. Renal vein\n5. Renal hilum\n6. Renal pelvis\n7. Ureter\n8. Minor calyx\n9. Renal capsule\n10. Inferior renal capsule\n11. Superior renal capsule\n12. Afferent vein\n13. Nephron\n14. Minor calyx\n15. Major calyx\n16. Renal papilla\n17. Renal columnMain article: Nephron\nThe basic functional unit of the kidney is the nephron, of which there are more than a million within the cortex and medulla of each normal adult human kidney. Nephrons regulate water and soluble matter (especially electrolytes) in the body by first filtering the blood under pressure, and then reabsorbing some necessary fluid and molecules back into the blood while secreting other, unneeded molecules. Reabsorption and secretion are accomplished with both cotransport and countertransport mechanisms established in the nephrons and associated collecting ducts.\n\n\n[edit] Collecting duct system\nMain article: Collecting duct system\nThe fluid flows from the nephron into the collecting duct system. This segment of the nephron is crucial to the process of water conservation by the organism. In the presence of antidiuretic hormone (ADH; also called vasopressin), these ducts become permeable to water and facilitate its reabsorption, thus concentrating the urine and reducing its volume. Conversely, when the organism must eliminate excess water, such as after excess fluid drinking, the production of ADH is decreased and the collecting tubule becomes less permeable to water, rendering urine dilute and abundant. Failure of the organism to decrease ADH production appropriately may lead to water retention and dangerous dilution of body fluids, which in turn may cause severe neurological damage. Failure to produce ADH (or inability of the collecting ducts to respond to it) may cause excessive urination, called diabetes insipidus.\n\nAfter being processed along the collecting tubules and ducts, the fluid, now called urine, is drained into the bladder via the ureter, to be finally excluded from the organism\n\nBlood Pressure\n\nSodium ions are controlled in a homeostatic process involving aldosterone which increases sodium ion absorption in the distal convoluted tubules.\n\nWhen blood pressure becomes low, a proteolytic enzyme called Renin is secreted by cells of the juxtaglomerular apparatus (part of the distal convoluted tubule) which are sensitive to pressure. Renin acts on a blood protein, angiotensinogen, converting it to angiotensin I (10 amino acids). Angiotensin I is then converted by the Angiotensin converting enzyme (ACE) in the lung capillaries to Angiotensin II (8 amino acids), which stimulates the secretion of Aldosterone by the adrenal cortex, which then affects the kidney tubules.\n\nAldosterone stimulates an increase in the reabsorption of sodium ions from the kidney tubules which causes an increase in the volume of water that is reabsorbed from the
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The esophagus is just the path by which food travels from the mouth to the stomach. No digestion occurs within it. The movement of food is aided by muscle contractions called peristalsis, which works the food down to the stomach for further digestion.
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Endoplamsic reticulum (ER) is explained above.\nExamples of reticuloendothelial systems are the Liver and the Spleen. On microscopic examination, these organs show a strange structural organization. Cells form extensive hollow cannals that allow blood to pass through. You may describe it as sinusoidal. These cannals act like blood vessels but are not blood vessels.
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The small intestines absorbs many nutrients from the food you eat.  If part of it is removed,  nutrients are not absorbed and thus weight loss results.
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The lymphatic system is a complex network of lymphoid organs, lymph nodes, lymph ducts, and lymph vessels that produce and transport lymph fluid from tissues to the circulatory system. The lymphatic system is a major component of the immune system.\n\nThe lymphatic system has three interrelated functions: (1) removal of excess fluids from body tissues, (2) absorption of fatty acids and subsequent transport of fat, chyle, to the circulatory system and, (3) production of immune cells (such as lymphocytes, monocytes, and antibody producing cells called plasma cells).
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The gall bladder is a balloon-like sac that connects to the liver and the top of the small intestines. It stores bile, a green substance produced by the liver. Bile assists in the digestion of fats.