Digestion

The oral cavity is responsible for the mechanical break-down of food. As food enters the mouth, the teeth begin to chew and the tongue moves the food around. The food particles mix with saliva, which contains digestive enzymes, and becomes slippery. This enables the food to become easier to swallow, allowing it an easier passage as it move into the pharynx, esophagus, stomach, intestines, and finally the colon, which allows it to be evacuated from the body through the rectum. The oral cavity is…

The small intestine consists of three divisions: The duodenum is the uppermost division and the part to which the pyloric end of the stomach attaches. it is about 25 cm (10 inches) long and is shaped roughly like the letter C. The name duodenum , meaning " 12 fingerbreadths," refers to the short length of this intestinal division. The duodenum becomes jejunum at the point where the tube turns abruptly forward and downward . The jejunal portion continues for approximately the next 2.5 m (8…

digestive tract includes the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. Some accessory organs of the digestive tract include the teeth, tongue, and various glandular organs such as salivary glands, liver and the pancreas. Digestion is important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair. Food and liquids must be changed into smaller molecules of nutrients before the blood absorbs them and carries them to the…

In this phase, solid is placed into the mouth and the lips are shut by the orbicularis oris facial muscle (VII). The food is mixed with salvia and masticated with the teeth, so it can pass through the esophagus for digestion. Sensory recognition is critical at this stage and the movement and timing patterns in this phase varies depending on the viscosity. The salvia and food has now created a bolus in which lateral movements of the tongue and mandible are made. Furthermore, the soft palate has…

Summary: Barry James, a 67-year-old man presents to the hospital with a recent onset of diarrhea and weight loss; patient has a history of lactose intolerance, vitamin B12 deficiency and intermittent diarrheal episodes that last 1-2 days. Peripheral edema was noted on the physical examination, and the abdominal examination was negative for distention and organomegaly. Question: Describe the pathophysiology and clinical presentations associated with small intestine malabsorption. Generate:…

The mouth which is also called the oral cavity is associated with the accessory organs such as teeth, salivary glands, and tongue. The mouth is where digestion starts. Our teeth are used to chew food into really small pieces and our saliva contains enzymes that begins the process of digestion. Our tongue occupies the floor of the mouth and mixes food with saliva to form bolus which is a compact mass that forms food into a lump that helps initiates swallowing. The mouth begins the process of…

vertebrates, and involved in many metabolic processes, I for one Liver, remain the second-largest organ. I perform numerous processes assisting with digestion, metabolism, immunity, including the storage of nutrients. I’m a glandular organ divided by openings. I operate in the emission of bile (Greenish liquid that responsible for chemical digestion of fats if your unaware) along with numerous metabolic processes. These processes are essential for bodily function. Even though, now it’s revealed…

When I look at the food that I consumed for Friday night, I have realized that my diet contains few vegetables and fruits. Furthermore, I did not take any dairy food. When I went to Choose My Plate website, I entered my age: 21, height: 156 cm, weight: 48 kg, and exercise 40-60 minutes a day. According to this website, it suggests that I intake 2000 calories per day. My dairy food plan recommends that I have 6 ounces of grains, 2.5 cups of vegetables, 2 cups of fruits, 3 cups of dairy, and 5.5…

nucleus controls the cell activities inside the cell. Mitochondria are needing to give energy to the cell and tissue. The columnar and squamous epithelium cell are found in the lining of the oesophagus.The mitochondria and lysosomes is used in the digestion system as an organelle is that the lysosome act as an enzyme which helps to break down the food or any of the…

system is the mechanical force behind the digestive system. Beginning when you take a bite, your muscular system aids your digestive system. Chewing and swallowing are done by the muscular system; muscles surrounding your stomach churn up food to aid digestion; muscles transport digested food through your intestines and eventually out of your body. (The muscles for chewing and swallowing are voluntary muscles; the rest are involuntary.) Another system is the respiratory and the circulatory,…