muscle that contracts and relaxes to integrate digestive juices with the food causing it to breakdown. The SMALL INTESTINE is the next organ in the digestive system that is controlled by a sphincter muscle that helps move food into and through the tract. The small intestine is made up of three segments 1-Duodenum 2-Jejunum 3-Ileu. t’d: Jejunum & Ileum… VILLI •Small fingerlike projections •Increase surface area for absorption •Absorb nutrients through membranes known as semi permeable membranes
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reticular formed with tracts of passages and contains three colorful structures that biopsychologists use; grey‚ black‚ and red. These colorful sections contribute too many functions: sleep‚ attention‚ and movement‚ maintenance of muscle tone‚ cardiac‚ circulatory‚ and respiratory reflexes. The grey matter has a role in the effects of opiate drugs or pain reducers. The black and red areas are both important in the sensorimotor system. The Metencephalon houses many tracts and part of the reticular
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a basic process of the gastrointestinal system? A) digestion B) filtration C) absorption D) secretion E) motility Answer: B Diff: 4 Page Ref: 568 2) Which of the following is the correct order of the layers of the gastrointestinal tract wall‚ from lumen to external surface? A) mucosa submucosa muscularis externa serosa B) serosa muscularis externa submucosa mucosa C) serosa mucosa submucosa muscularis externa D) mucosa submucosa serosa muscularis externa
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lactic acid bacteria‚ of which Lactobacillus acidophilus‚ found in yogurt with live cultures‚ is the best known. Yeast is also a probiotic substance. But only certain types of bacteria or yeast (called strains) have been shown to work in the digestive tract. Probiotics are also available as dietary supplements. Lactobacillus and Bifidobacteria Lactobacillus and Bifidobacteria is a type of bacteria. These are "friendly" bacteria that normally live in our digestive‚ urinary‚ and genital systems
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cells. It was found that after exposure to humor there was an increase in activated T-cells (T-lymphocytes) also the following were noted; increase in the antibody Ida (immunoglobulin A) which fights upper respiratory tract infection‚ increase in gamma interferon which tells various components of the immune system to “turn on”; increase in IgB‚ the Immunoglobulin produced in greatest quantity in the body‚ and an increase in compliment free
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Visceral – from internal organs 2. Motor – carry impulses from CNS to effectors - Somatic – to skeletal muscle - Visceral – to smooth muscle‚ cardiac muscle‚ glands Nerves and Nerve Tracts 1. Sensory – made only of sensory neurons 2. Motor – made only of motor neurons 3. Mixed – made of motor and sensory 4. Nerve tract – white matter; a nerve in the CNS The Nerve Impulse 1. Polarization – neuron membrane has a + charge outside and – charge inside 2. Depolarization – entry of Na+ ions and reversal
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Animal Phyla Lab Adapted from “Phylum Lab” produced by the National Aquarium in Baltimore The diversity of animal life on Earth is astounding. Each animal has a unique body plan which allows it to survive and adapt to its given surroundings. With such an abundance of species‚ classifying animals into different categories is necessary. At first the diversity of animals can be overwhelming‚ but after further research and observation‚ many likenesses appear. These similarities become the basis for
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Introduction 1. Explain the function of chemical digestion. The function is to break down food‚ using enzymes and other digestive chemicals to reduce food into particle nutrients molecules that be absorbed and move it through the digestive tract. Digestive Chemicals 2. What is the general function of digestive enzymes? Do most of the works in chemical digestion 3. Identify other chemicals needed for digestion. a. Water c. Bile b. Gastric acid d. Bicarbonate 4
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Ram Mohan Roy‚ Ram Mohan also spelled Rammohun or Rammohan (22 may 1772-27 September 1833) was an Indian religious‚ social and educational reformer who challenged traditional Hindu Culture and indicated the lines of progrees for Indian Society under British rule. He is sometimes called the maker of modern India. He along with Dwarkanath Tagor and other Bengalis founded the Brahmo Sabha in 1828 which engendered the Brahmo Samaj an influential Indian Social-religious Contents 1 Biography 1
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The Digestive System: Anatomy Review 1. List two main divisions of the digestive system. a. Gastrointestinal tract b. Accessory digestive 2. The four main layers of the digestive tract wall are a. Mucosa b. Submucosa c. Muscularis Externa d. Serosa 3. Label the diagram below with the four main layers you listed in question 6. 4. The mucosa includes a type of columnar __cell______that forms the inner lining of the lumen 5. Blood and lymph vessels of the mucosa are found in its _epithelial
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