Lithuanian University of Health Sciences (LSMU) Entrance Exam 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 460

Which type of epithelium is characterized by rectangle-shaped cells and can be found in the GI tract?

Stratified squamous epithelium

Pseudostratified columnar

Transitional epithelium

Columnar epithelium

The correct choice is columnar epithelium, which is characterized by tall, rectangle-shaped cells. This type of epithelium is particularly well-suited for absorption and secretion, making it a predominant type found in the gastrointestinal (GI) tract. The shape of the cells allows for a larger surface area, which facilitates these functions effectively.

In the GI tract, columnar epithelium is often found lining the intestines, where it supports nutrient absorption and the secretion of mucus and digestive enzymes. The presence of microvilli on these cells can further enhance their absorptive capacity.

Understanding the specific characteristics and functions of these epithelial types is crucial for distinguishing them and recognizing their roles in various organs and tissues.

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