Transcription of Human Physiology/The gastrointestinal system
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Human Physiology/The gastrointestinal system
Human Physiology/The gastrointestinal system1 Human Physiology/The gastrointestinal system The respiratory system Human physiology Nutrition Homeostasis Cells Integumentary Nervous Senses Muscular Blood Cardiovascular Immune Urinary Respiratory gastrointestinal Nutrition Endocrine Reproduction (male) Reproduction (female) Pregnancy Genetics Development AnswersIntroductionWhich organ is the most important organ in the body? Most people would say the heart or the brain, completelyoverlooking the gastrointestinal tract (GI tract). Though definitely not the most attractive organs in the body, theyare certainly among the most important. The 30+ foot long tube that goes from the mouth to the anus is responsiblefor the many different body functions which will be reviewed in this chapter. The GI tract is imperative for our wellbeing and our life-long health. A non-functioning or poorly functioning GI tract can be the source of many chronichealth problems that can interfere with your quality of life.
Human Physiology/The gastrointestinal system 2 Muscularis: The muscularis is responsible for segmental contractions and peristaltic movement in the GI tract.The muscularis is composed of two layers of muscle: an inner circular and outer longitudinal layer of smooth muscle.
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