The saliva which is contained in the mouth which is produces by the salivary glands begins to digest the food before the food is even swallowed. Saliva and the other chemicals which are produced along the way help speed up the digestive process which is called digestive enzymes. The mouth which is also known as the oral cavity is a specialized organ which receives food and breaks it into smaller pieces. The mouth is changed mechanically when biting and chewing food. In a humans mouth there are teeth and within a human they are four types of teeth which are used for different functions such as the incisor teeth are for biting and are found are the front of the mouth.
Support the absorption of carbohydrates and proteins B. accept chyme from the stomach and complete digestion C. Absorbs B12,bile salts, fluids and electrolytes and secretes enzyemes that further break down carbohydrates and proteins 14. Slow the passage of food along the intestines and increase surface for absorption 15. A. Absorbs B12,bile salts, fluids and electrolytes and secretes enzyemes that further break down carbohydrates and proteins B. Creates a space for liquids to empty into C. Move waste up and out of the body D. Absorbs water from stool E. Absorbs water from stool and stores food that will be emptied into the rectumlts F. Moves stool into rectum 16. Secretes pancreatic juice, insulin, glucagon, duodenum, and somatostatin into the bloodstream.
_____ Chewing of food is a form of chemical digestion. 10. _____ Amylase is a hormone which breaks down maltose. 11. _____ Maltase is a substrate for maltose.
Discuss the importance of teeth in human nutrition Teeth perform mechanical digestion thus increasing the surface area of food for salivary amylase to work and for the enzymes of the stomach and small intestine to work more efficiently 2. Describe how food passes through the esophagus Food is pushed down the esophagus to the stomach through the process of peristalsis. Wave-like contractions alternate between contraction and relaxation to push the food through the entire digestive tract from the esophagus through the stomach, small intestine and large intestine. 3. Why would the enzymes in your mouth not work in your stomach and the enzymes in your stomach not work in your mouth?
d. Zach’s G.I. tract needs the substance to assist in the breakdown of food and for absorption. Epithelial cells extend into the lamina where they form secretory folds called gastric glands. Several of these glands open into the gastric pits and secretions from these glands flow into the pits. E. If Zach’s only normal digestive enzymes from his mouth, what
Liver – Major role in dealing with the nutrient products of food digestion. Detoxifies harmful substances in the intestines. Involved in recycling red blood cells by breaking them down. By product is bile, which is important in the breakdown of fats. Produces essential proteins and clotting factors for the blood and regulates metabolism and cholesterol.
Identify the major structures of sight and hearing. Break down and define common medical terms used for symptoms, diseases, disorders, procedures, treatments, and devices associated with the special senses of sight and hearing. Build medical terms from word parts associated with the special senses of sight and hearing. Pronounce and spell common medical terms associated with the special senses of sight and hearing. • • indicated in Course Schedule Chapter 1 online Short Answer Quiz and Chapter 1 online examination Mini Medical Record Reviews optional extra credit Chapter 15 The Endocrine System Upon completion of this chapter, the student should be able to: • • • • Define and spell the word parts used to create medical terms for the endocrine system.
The esophagus muscles contractions called peristalsis forces the food through the sphincter valve and into the stomach. Within the stomach is the mucosa and where the food is processed into thick liquid called chime this is made up of hormones and protein molecules that breakdown food and carry message to other
HSC 3050 Prepare for and carry out extended feeding techniques. 1.1 Explain the anatomy and physiology of the gastro-intestinal tract in relation to extended feeding. Anatomy and Physiology Digestion of food begins in the mouth where food is chewed and softened by saliva to break down into pieces small enough for you to swallow. Food is then pushed down into the esophagus, a muscular tube that carries food to the stomach where it is digested. From the stomach, food travels to the small intestines, where digestion continues and nutrients are absorbed into the bloodstream.
Ingestion – the act of eating food or drinking Digestion – breaking food down into smaller pieces (mechanical digestion) or smaller molecules (chemical digestion) Absorption – the uptake of small nutrient molecules into the body Elimination – the passage of undigested waste from the