{"id":27150,"date":"2020-10-13T10:10:44","date_gmt":"2020-10-13T04:40:44","guid":{"rendered":"http:\/\/astan.lk\/al_virtualclassroom\/?p=27150"},"modified":"2020-10-13T10:11:54","modified_gmt":"2020-10-13T04:41:54","slug":"structures-found-human-alimentary-tract","status":"publish","type":"post","link":"https:\/\/astan.lk\/al_virtualclassroom\/structures-found-human-alimentary-tract\/","title":{"rendered":"Structures found in human alimentary canal"},"content":{"rendered":"<p><strong>HUMAN DIGESTIVE SYSTEM<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/kcoad1.wikispaces.com\/file\/view\/Human_Digestive_System.gif\/232486300\/Human_Digestive_System.gif\" alt=\"\" width=\"640\" height=\"480\" \/><strong>Absorption of nutrients<\/strong><\/p>\n<ul>\n<li>Absorption of end products of the digestion occurs mainly in the small intestine.<\/li>\n<li>By 3 main process<\/li>\n<\/ul>\n<p>1) Diffusion<\/p>\n<p>2) Facilitated diffusion &#8211; ATP is not required<\/p>\n<p>3) Active transport &#8211; ATP is used<\/p>\n<ul>\n<li>Carbohydrate as disaccharide and protein as dipeptide and tripeptide are actively transported into the microvilli and the digestion is completed within the enterocytes.<\/li>\n<li>Carbohydrates as monosaccharides, protein as amino acid and fat as fatty acid and glycerol are absorbed into the enterocytes.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li>Monosaccharide, amino acid, water soluble vitamins, minerals and water are absorbed into the blood capillaries in the villi.<\/li>\n<li>Some proteins such as antibodies in the mother&#8217;s milk are absorbed unchanged.<\/li>\n<li>Fatty acids and glycerol are absorbed and synthesized as triglycerides within the enterocytes.<\/li>\n<li>The triglycerides are absorbed into the lacteal. Fat soluble vitamins also absorbed along with the triglycerides.<\/li>\n<\/ul>\n<p><strong>Balance diet<\/strong><\/p>\n<ul>\n<li>A diet containing essential nutrients, carbohydrates, proteins, lipids, dietary fibers, minerals, vitamins and water in the correct proportion is called as a balanced diet.<\/li>\n<li>A balanced diet is essential for health, if any nutrient is eaten in excess or is deficient, health may be adversely affected<\/li>\n<\/ul>\n<p><strong>Dietary fibers<\/strong><\/p>\n<ul>\n<li>Fiber is not a nutrient as it is not digested or absorbed, but it has many beneficial effects on the digestive tracts.<\/li>\n<\/ul>\n<p>1) Provides bulk to the diet and helps to satisfy the appetite<\/p>\n<p>2) Stimulates peristalsis<\/p>\n<p>3) Attracts water, increasing bulk and softness of faecus<\/p>\n<p>4) Increases frequency of defecation, preventing constipation<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>Prevents some gastrointestinal disorders<\/li>\n<\/ul>\n<p>Example: &#8211; Colo-rectal cancer<\/p>\n<p>&nbsp;<\/p>\n<p>Disorders in the alimentary canal<\/p>\n<ol>\n<li>Gastritis<\/li>\n<\/ol>\n<ul>\n<li>When there is an excess of acid in the stomach causing damages to the mucosa.<\/li>\n<li>Due to the damages, blisters are formed.<\/li>\n<li>The causes of short-term gastritis are\u00a0 \u00a0 \u00a0 1) Mental stress or tension<\/li>\n<\/ul>\n<p>2) Prolonged starvation<\/p>\n<p>3) Consumption of alcohol<\/p>\n<p>4) Suffering from some diseases such as tuberculosis, syphilis etc.<\/p>\n<p>5) Prolonged use of aspirin<\/p>\n<ul>\n<li>Chronic or long-term gastritis also associated with the bacteria called Helicobacter pylori<\/li>\n<\/ul>\n<ol>\n<li>Constipation\n<ul>\n<li>Inhibition of the reflex action in defecation may lead to constipation.<\/li>\n<li>Constipation causes pain of the anus and difficulties in defecating.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p><strong>Control<\/strong><\/p>\n<ul>\n<li>Behavioral adjustment should be developed to carry out defecation.<\/li>\n<li>Adequate fibers in the diet.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>HUMAN DIGESTIVE SYSTEM Absorption of nutrients Absorption of end products of the digestion occurs mainly in the small intestine. By 3 main process 1) Diffusion 2) Facilitated diffusion &#8211; ATP is not required 3) Active transport &#8211; ATP is used Carbohydrate as disaccharide and protein as dipeptide and tripeptide are actively transported into the microvilli [&hellip;]<\/p>\n","protected":false},"author":843,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[12,1245],"tags":[],"class_list":["post-27150","post","type-post","status-publish","format-standard","hentry","category-biology","category-nutrition"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Structures found in human alimentary canal - Learning &amp; Education Portal<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/astan.lk\/al_virtualclassroom\/structures-found-human-alimentary-tract\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Structures found in human alimentary canal - Learning &amp; Education Portal\" \/>\n<meta property=\"og:description\" content=\"HUMAN DIGESTIVE SYSTEM Absorption of nutrients Absorption of end products of the digestion occurs mainly in the small intestine. 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