**Trick to Remember Examples of Simple Columnar Epithelium**

To remember the examples of simple columnar epithelium, you can use the mnemonic "CET-TA," which stands for:

- **C**ilia
- **E**xocrine glands
- **T**rachea
- **T**ubular organs
- **A**bsorption

Let's break down each of these examples in detail:

1. **Cilia**: Simple columnar epithelium can be found lining the respiratory tract, including the bronchi and bronchioles. These cells are equipped with tiny hair-like structures called cilia, which help in the movement of mucus and foreign particles out of the respiratory system.

2. **Exocrine glands**: Simple columnar epithelium can also be found in exocrine glands, such as the gastric glands in the stomach and the intestinal glands in the intestines. These glands secrete various substances into the lumen of the organs they are associated with.

3. **Trachea**: The trachea, also known as the windpipe, is lined with simple columnar epithelium. These cells provide protection and help in the movement of mucus and trapped particles out of the respiratory system.

4. **Tubular organs**: Simple columnar epithelium can be found lining various tubular structures in the body, such as the small intestine and the gallbladder. In the small intestine, the cells of the simple columnar epithelium increase the surface area for efficient absorption of nutrients.

5. **Absorption**: Simple columnar epithelium is well-suited for absorption due to its tall and closely packed cells. This type of epithelium is found in the lining of the small intestine, where it plays a crucial role in the absorption of nutrients from digested food.

Remembering the mnemonic "CET-TA" can help you recall the examples of simple columnar epithelium, which include cilia in the respiratory tract, exocrine glands, the trachea, tubular organs like the small intestine, and its role in absorption.

Overall, simple columnar epithelium is a specialized type of tissue that performs various functions in different organs of the body.