A turkey and cheese sandwich would be divided into three categories: protein, carbs, and fat. The bread would be carbs, the turkey protein, and the cheese fat. This is how the process would go for each nutrient: Carbohydrates The digestion of carbohydrates starts in your mouth. Saliva contains the enzyme amylase. Amylase breaks down amylase and amylopectin (which are starches found commonly in foods such as pasta) and converts some of the starch maltose (a disaccharide.)
The oesophagus is a tube of muscles that contract to push the bolus down towards the stomach and this action is called peristalsis. When the food has reaches the stomach the strong walls of the stomach roll and churn the ham sandwich and add of secretions from the gastric gland. The ham sandwich now resembles a paste-like material and is called chime. The secretions of the gastric gland contain gastric protease and hydrochloric acid that further breakdown the food molecules. The small intestine is made up of three sections that help to break down food using enzymes released by the pancreas and bile from the liver.
“The medulla is further divided into numerous sections called the medullary pyramids.”This region is known as the pelvis of the kidney. The medullary pyramids have urine dripping into the pelvis. The branches of the emerging arterioles of the renal artery usually go along the border found between the medulla and cortex. The smaller branches given off at right angles provided million or more of nephrons into the cortex of the kidney. Structure and function of nephrons/kidney tubules “Nephron is the basic structural and functional unit of the kidney.” The nephron consists of a tubule closed at one end, the other and opening into a collecting tubule.
The right bronchus is shorter, wider and more vertical than the left bronchus. Because of this if a foreign object such as food gets into the trachea it will get lodged in the right main bronchus. (Rizzo, 410). 2. What are three methods of carbon dioxide transport within the blood?
Bio-227 FG Dr. Falkhoury Truman College March 6, 2008 Take my hand as I walk you into the mouth of the primordial man who is about to eat a meal rich in fat, proteins, and carbohydrates. Before him lies the stripped carcass of a wildebeest. He will take his primitive hand tool, crack open the bone, and roast the marrow over a brush fire. He also consumes a handful of lentils, and quenches his thirst by suckingthe carbohydrates out of a moist tuber. In between gulps of this nutritious meal, let us sneak in to his cavernous mouth.
The normal diameter of the aorta is around 2 cm. The abdominal aorta has several branches that include the celiac axis, which trifurcates into the left gastric, the splenic and the hepatic arteries, the SMA, the renal arteries and IMA. The celiac artery supplies the stomach, liver, pancreas, duodenum and spleen. It then branches into the left gastric (stomach), splenic (spleen) and common hepatic (liver) arteries. About one centimeter from the celiac axis, you find the SMA which supplies the small intestine, cecum and parts of the colon.
The Journey of the Digestive System Michael Anatomy and Physiology HS130-06 Unit 9 Assignment Kaplan University June 19, 2011 The Journey of the Digestive System What is digestion and how does it work with homeostasis? The human body is the most wonderful, complex machine in the world. Digestion is the complex process of breaking down food into energy and other useful elements, which can then be absorbed into the bloodstream and distributed throughout the body to maintain good health. Food leftovers which are not absorbed during the digestion process are expelled as waste in the form of feces and urine. On our fantastic voyage we will be making our way through the digestive system of an elder gentleman, who has just eaten and conclude our journey out the urinary system.
Conclusion Describe the main functions of the human digestive system. * The digestive system is uniquely constructed to perform its specialized function of turning food into energy and packing the residue for waste disposal. For lunch, you have a turkey sandwich on wheat bread with mayonnaise and lettuce. Describe how each component of this meal would be broken down in the digestive system. * The sandwich would be chewed into a bolus and saliva would break starches into disaccharides.
The Digestive System The digestive system is made up of the digestive tract—a series of hollow organs joined in a long, twisting tube from the mouth to the anus—and other organs that help the body break down and absorb food. The process of digestion usually takes from 12 to 24 hours, from ingestion to elimination. Organs that make up the digestive tract are the mouth, oesophagus, stomach, small intestine, large intestine—also called the colon—rectum, and anus. Inside these hollow organs is a lining called the mucosa. In the mouth, stomach, and small intestine, the mucosa contains tiny glands that produce juices to help digest food.
When food enters our mouth it is moistened by saliva, salivary glands begin the digestive process from the sight and smell of food. The tongue aids in digestion by moving food around the mouth so it can be chewed property to break food down. The small intestine is 20 feet and takes 3 – 5 hours to digest food, it is dived into three sections, the duodenum, the jejunum and the ileum. It is responsible for absorbing most of the nutrients we eat in food. The small intestine breaks down most of the protein, fat, and carbohydrates we eat.