Name the four basic tissues that are in the wall of the stomach, with one job for each…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
- Name the four basic tissues that are in the wall of the stomach, with one job for each.
- Explain why the stomach is an organ and not a tissue.
- The stomach is part of which organ system?
- If the neural tissue of the stomach did not work, which job would be lost?
Need a reminder? The key ideaShow
An organ is a structure made of two or more tissues that are arranged to do a particular job. The stomach, for example, has epithelial, connective, muscular and neural tissue. Organs that work together form an organ system. The levels of organisation of an animal run from cell to tissue, organ, organ system and organism. The human body is usually described as having eleven organ systems. In the wall of a hollow organ such as the intestine the layers are the mucosa, the submucosa, the muscularis and the serosa.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. (a) Epithelial tissue lines it and makes mucus and juice. Connective tissue holds the layers and carries blood vessels. Muscular (smooth) tissue churns the food. Neural tissue controls the muscle and the glands.
Step 2. (b) It is made of more than one kind of tissue, arranged to do a particular job.
Step 3. (c) The digestive system.
Step 4. (d) The control of the churning and of the juice. The stomach would work badly.
Answer: (a) epithelial, connective, muscular, neural; (b) it has several tissues; (c) digestive system; (d) the control of its muscle and glands.
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