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Week 7 -- Discussion 7

Week 7 -- Discussion 7

Q Unit 7: Discussion Pick 2 of the bulleted prompts below to write about in this week’s discussion. Unit 7 – Digestive System • Pick 3 of the following digestive processes describe what is occurring and where it is occuring throughout the digestive system. o Ingestion o Mastication o Deglutition o Absorption o Peristalsis o Segmentation o Defecation • Describe the digestive processes of the mouth, pharynx, and esophagus and related accessory structures. • Describe the digestive processes of the stomach and related gastric phases. • Describe the digestive processes of the small intestine and related accessory structures. • Describe the digestive processes of the large intestine and related accessory structures. • Describe the three major macromolecules, where and how they are digested and absorbed. • Discuss 4 homeostatic imbalances of the digestive system and what is occurring physiologically in a person with the condition. ________________________________________________________________________ General Discussion Requirements Your initial response to the Prompt below should be posted no later than midnight on Day 4 of the academic week. Your input should be in your own words, demonstrating your understanding and comprehension of the topic. Copying and Pasting from the internet will result in a zero. It is expected that you will include both in-text and final references properly formatted in APA on all initial discussion postings. For help with this refer to the Academic Writer tab to the left of your screen. Then, I want to see you respond to your classmates in the middle of the week (try for Day 4, 5, or 6). The purpose here is to generate discussion to further explore the topics...ask questions, add insight, agree or disagree, etc. Of course, all discussion should be positive and professional. Do not complete all discussions requirements in one sitting; you should post in the discussion 3-4 different days throughout the week. If you have questions about this participation requirement, post them to the Course Questions Forum. Refer to the rubric/syllabus for a complete breakdown of the expectations.

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• Ingestion: To begin getting nourishment, one first ingests food, which is done by biting food and chewing it with saliva. It is a multi-step procedure to obtain nourishment and energy from food. The first stage for animals is the act of eating, called ingestion. Food intact with big molecules will not enter cells because of the cell membranes. In order for animals to use the nutrients and organic components, food need be broken down into smaller particles. First, the meal is ingested. The teeth, saliva, and tongue are involved in chewing and mastication (preparing the food into bolus) (Frost, 2001).