The human digestive system comprises of a long continuous conduit known as a gastrointestinal tract that extends from the mouth to the anus. It consists of a number of organs and auxiliary structures which processes food (process known as digestion), both mechanically (using muscles) and chemically (using digestive enzymes) into smaller water-molecules, e.g. sugars, which are then absorbed into the body which are then be utilised by the body to produce energy and other nutrients which the body requires to survive.
The process of obtaining nourishment is instigated by the ingestion (intake) of food and/or liquid entering the gastrointestinal tract through the mouth. In the mouth, the food will encounter the tongue, which will analyse the ingested material to see if it safe for the body to consume or if it needs to be rejected (toxic or poisonous). The sensory receptors on the tongue detect sweet, salt, bitter and sour taste and this stimulates the three pairs of salivary glands to produce saliva and secrete it into the mouth. Saliva is a water-based liquid that contains mucus and enzymes,
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This is a globular mass of partially digested materials. This ensures that the ingested material is slippy and easy to swallow. The tongue then moves the bolus towards the pharynx, a muscular conduit, during swallowing. The pharynx is shared with the ingested materials and liquids, going to the stomach, and air, going to the lungs. A flap of cartilage at the back of the tongue, called the epiglottis, prevents ingested materials from entering the trachea. Muscles in the wall of the pharynx push ingested materials into the oesophagus. The oesophagus is a narrow muscular tube that uses peristalsis (contraction of the muscles in waves) to transport the bolus and any liquids from the pharynx to the stomach. No digestive processes take place in the
The seats hold the crowd in place during the game. 8. Lysosomes - Lysosomes help the digestive process. They contain enzymes that speed up the process and help digestion of food and other materials. Lysosomes are like mitts in baseball.
The results are based on the effects of the age, volume, consistency and gender on the duration of the swallowing assessment. The clinical importance of the results showed the difference in timing and how the diameter of the pharynx between male and female can affect the result of swallowing. 1. What did the researchers conclude?
The proper functioning of one system relies on the proper functioning of the other system. In other words, the digestive system needs to be in good working order to support the functions of the cardiovascular system. An example of the digestive and cardiovascular systems interrelating is: the first step in digestion of fat is to dissolve it into the intestine where bile acids produced by the liver dissolve the fat into fatty acids and cholesterol. The bile acids join with the fatty acids and cholesterol and vessels then carry the changed fat to the veins of the chest, and the blood carries the fat to storage in different parts of the body.
The digestive system is responsible for chemically and mechanically breaking down food and includes organs such as, mouth, esophagus, stomach, small intestine, rectum, anus, and additional accessory organs. These organs all aid in the breakdown of food. Food is broken down mechanically by chewing and churning in the stomach, and chemically by acidic enzymes in the stomach and in the small intestine which receives enzymes from the pancreas that are specifically designed for the breakdown of nutrients. Once the food and nutrients are broken down, the excretory system removes whatever the body decides is waste by filtering blood in the nephrons of the kidneys and turning it into urine which is then collected in the bladder and removed from the body when the bladder is
The primary phases of the gastrointestinal tract of a horse include the foregut, which incorporates the mouth, esophagus, stomach, and small intestines. The adventure starts when the horse utilizes its teeth to tear grass from the earth or uses its lips to get bits of hay or grain starting from the earliest stage. The nourishment is exchanged to the back of the mouth by the tongue for biting by the molars and is blended with saliva. The blending of the sustenance with spit is the initial phase in the digestive procedure. Once the nourishment is chewed, the base of the tongue pushes it past the soft palate and into the pharynx.
Gastroschisis is a defect in the fetal abdominal wall in which the bowel protrudes through an opening and floats freely in the amniotic fluid. The defect is small (2-4 cm) and it is usually on the right side. It is unrelated to the umbilical cord, located at junction of the umbilicus and the skin. Bowel herniates through the defect with no overlying membrane. The majority of fetuses with this problem are born to younger mothers.
Proton pump inhibitors (PPIs) are a group of medicines, such as lansoprazole and omeprazole, that work on the cells that line the stomach, reducing the production of acid. The stomach normally produces acid to help with the digestion of food and to kill germs (bacteria). This acid is corrosive so the body produces a natural mucous barrier which protects the lining of the stomach from being eroded.
The Digestive System The digestive system is a system consisting of the mouth, oesophagus, stomach, gallbladder, small intestine, large intestine, the rectum and the anus. The functions of the digestive system are: • To break down food particles into molecules for digestion • To absorb into the bloodstream the small molecules produced by digestion • To eliminate un digested and unabsorbed foodstuffs and other waste products from the body The full digestive process begins at the mouth. The food enters the mouth and is chewed.
At least 70 million people in the U.S. suffer from some sort of digestive illness (not including heartburn), and digestive problems account for nearly 10% of all healthcare spending. The hard-working gut allows nutrients and water to enter the body while preventing the entry of toxins/antigens. It’s a selective barrier between “us” and the outside world. But a distressed gut can’t act in our defense.
Stomach bloating is no laughing matter- It’s uncomfortable, painful and often embarrassing accompanied by gas! This nightmare swells the abdominal area, causing cramping aches and pain around the pelvis or chest areas. Fortunately, there are a number of natural ways to prevent and get rid of bloating altogether.
Title of the proposal: Chronic diarrhea in the outpatient department: evaluation of demographic and clinical characteristics. Background: Chronic diarrhoea in adult is a common gastrointestinal disorder that is characterized by various degrees of abdominal pain and diarrhoea. Most patients have long-standing symptoms [1]. It is defined as the abnormal passage of three or more loose or liquid stools per day for more than four weeks [2]. This definition based on symptoms led to an overlap between functional bowel disorders such as irritable bowel syndrome [3] and organic causes.
Food, a substance which is consumed to provide nutrition to the body. It is usually obtain from plant or animal and contain many essential nutrients, which includes fats, vitamins and minerals. The food ingested and assimilated by organism and its cells respectively, to provide energy, maintain life and to stimulate growth. We humans have five different types of tastes perception like sweet, sour, salty, bitter, and umami. As humans have evolved, the taste which provide the most energy like sugar and fats are mostly pleasant to eat while others like bitter etc, are not enjoyable.
The digestive system is located around the stomach area. Along with the digestive system, many other organ systems all work together to create an organism. An example of this would be if a person eats a sandwich and then goes for a run. During the run, the circulatory system helps the body breathe, the muscle system helps the bones move, and all the while the digestive system digests the food. Later on, the excretory system gets rid of the waste, or food that the body can’t use for nourishment.
DIARRHEA Definition and Overview Diarrhea is a medical condition where the patient has at least three loose or liquid bowel movements a day. It is one of the most common diseases experienced by any age group, and is especially common in children. The most significant complication of diarrhea is dehydration. Dehydration is a condition resulting from massive loss of body water and electrolytes. When diarrhea ensues, body fluid and electrolytes are eliminated by the body before they are adequately absorbed.
CHAPTER I INTRODUCTION 1.1 Background Hunger is still a major concern in health issues. Hunger causes malnutrition, malnutrition and others. Famine kills more people than TB, HIV / AIDS and Malaria. A quarter of children born in developing countries are underweight.