Animal Tissues, Organs And Systems
Overview
Swallow a mouthful of food and it disappears into a tube that will take it several metres and several hours to cross. Along the way it is churned, soaked in chemicals made by organs sitting outside the tube, broken into molecules small enough to cross a membrane, and finally stripped of its water. Nothing about that is one organ doing one job.
In this lesson you will name the three animal tissues the specification asks for, see all three at work in the wall of the stomach, and follow the digestive system organ by organ. The reward is that a long question on digestion stops being a list to memorise and becomes a journey you can walk through in order.
Objectives
- Examples of animal tissues include: muscular tissue, which can contract to bring about movement; glandular tissue, which can produce substances such as enzymes and hormones; epithelial tissue, which covers some parts of the body.
- An example of an animal organ is the stomach, which contains: muscular tissue, to allow contents to move through the digestive system; glandular tissue, to produce digestive juices; epithelial tissue, to cover the outside and the inside of the stomach.
- An example of an animal organ system is the digestive system, a system in which humans and other mammals exchange substances with the environment. The human digestive system includes: glands, such as the pancreas and salivary glands, which produce digestive juices; the stomach and small intestine, where digestion occurs; the liver, which produces bile; the small intestine, where the absorption of soluble food occurs; the large intestine, where water is absorbed from the undigested food, producing faeces.
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Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on Animal Tissues, Organs And Systems. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- Which tissue contracts to bring about movement? A. Epithelial tissue B. Glandular tissue C. Muscular tissue D. Nervous tissue Answer: C
- Where in the digestive system is soluble food absorbed? A. The stomach B. The small intestine C. The large intestine D. The liver Answer: B
- Which organ produces bile? A. The pancreas B. The stomach C. The liver D. The small intestine Answer: C
- What is absorbed in the large intestine? A. Soluble food B. Water C. Enzymes D. Bile Answer: B
- Which tissue in the stomach produces digestive juices? A. Muscular tissue B. Epithelial tissue C. Glandular tissue D. Connective tissue Answer: C
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Recommended Books
Further learning from open sources
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Textbook section
Digestive Systems
Explain the processes of digestion and absorption
"Biology: Digestive Systems" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/biology/pages/34-1-digestive-systems. Access for free at https://openstax.org/books/biology/pages/1-introduction
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Textbook section
Animal Primary Tissues
Describe epithelial tissues
"Biology: Animal Primary Tissues" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/biology/pages/33-2-animal-primary-tissues. Access for free at https://openstax.org/books/biology/pages/1-introduction
Published by other organisations under open licences, credited as they ask. Links open their websites.
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