below the pectinate line‚ is divided into two zones separated by Hilton ’s white line. The two parts are the zona hemorrhagica and zona cutanea‚ lined by stratified squamous non-keratinized and stratified squamous keratinized‚ respectively. In humans it is approximately 2.5 to 4 cm long‚ extending from the anorectal junction to the anus. It is directed downwards and backwards. It is surrounded by inner involuntary and outer voluntary sphincters which keep the lumen closed in the form of an anteroposterior
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broken down from the hamburger begin to be transported by the blood capillary network and the lacteal (absorbs dietary fats in the villi ). The mucosa of the small intestine contains four major cells types including absorptive cells‚ which produce digestive enzymes and absorb digested fats‚ the goblet cells‚ which produce protective mucus‚ granular cells‚ which may help protect the intestinal epithelium from bacteria; and endocrine cells‚ which produce regulatory hormones. The small intestine contains
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stick your finger through the hole in a doughnut‚ that a lot like food moving through the hole that is your digestive system. In other words its going to move all the way from your mouth out your anus. But its not realy inside of you. When you stick your finger through the hole of a doughnut it not technically insdie the doughnut. Just like the food that goes through your digestive system is not technically inside your body‚ its just moving through a hole in your body. We can eventually absorb that
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Your “Fantastic Voyage!” is continuing. You are still a video reporter piloting a mini-sub that has been put through a miniaturization process making you and the sub only 8 microns long. This time‚ you have been swallowed by a 55 year old man eating a hamburger‚ french fries and a root beer. 1.For the first portion of the mission‚ you are to pilot your sub through the gastrointestinal tract to monitor the digestion of his meal. Describe all major structures you pass by or through‚ just like a
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major processes involved in gastrointestinal activity. Ingestion which takes in food‚ propulsion which contains peristalsis(alternates the contracting and relaxation) and segmentation(movement of food back and fourth across an organ mixing with the digestive juices)‚mechanical digestion(breaks food into smaller peices)‚chemical digestion(breakdown large molecules into their building blocks; occurs in the mouth‚ stomach‚ & small intestines)‚absorption(transport of nutrients from the blood or lymph)‚ and
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the Digestive‚ Respiratory‚ Circulatory‚ and Nervous Systems Introduction: Bones are what our skeletal systems are made up of. There are 206 bones in the human body of the adult skeleton. The adult skeleton is broken up in two divisions: the axial skeleton‚ and the appendicular skeleton. The axil skeleton is made up of 80 bones‚ and the appendicular skeleton is made up of 126 bones. As for the different systems of the body‚ we dissected a fetal pig in groups and indicated each system as we
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valve called the lower esophageal sphincter. The stomach secretes acid and enzymes that digest food. The lining of the stomach secretes hydrochloric acids and enzymes that break down the food so that it can continue on its journey through the digestive system. As it secretes acid and enzymes‚ the stomach muscles contract in a process called peristalsis to mix the food with the acid and enzymes. The acid also works to kill harmful microbes that may have made their way into the body along with food
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Physiology of stomach:- For understanding approaches for gastro retention‚ it is essential to overview gastric physiology and gastric motility. The stomach is situated in the left upper part of the abdominal cavity immediately under the diaphragm. Human stomach has a resting volume of 25-50ml‚ which can distend upto1500ml following a meal. It is divided into 5 anatomical parts: a) Cardia:- First part of the stomach below the esophagus. It contains cardiac spincter‚which is a thin ring of muscle that
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Where food enters the body. Chewing and salivary enzymes in the mouth are the beginning of the digestive process (breaking down the food). Teeth: Used to break food down by (chewing) into smaller particles. Tongue: is used to manoeuvre food that is being chewed. Pharynx: tube-like structure that connects oral and nasal cavities to the larynx; provides passageway for respiratory and digestive tracts. Located in the back of the oral cavity. Esophageal opening: The entrance to
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alsinodes [AD] [pic] Properties— Rasa- Katu‚ Tikta‚ Kasaya Guna- Laghu‚ Rüksa Virya-Sita Vipãka- Katu Karma -Tridosahara‚ Medhya‚ Visaghna‚ Cakusya [pic] Circulatory system : Being haemostatic and blood purifier‚ it is useful in haemorrhagic disorders and vatarakta. Hot infusion of dhamasa is given to prevent small pox. Respiratory system : It is used in common cold‚ cough‚ asthma as it acts as an expectorant and reduces the irritation of respiratory organs. Besides this‚ whole plant is used for smoking
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