A tissue sample take from the internal surface of the stomach is examined under a microscope. No extracellular matrix is visible, the cells are tall and thin, and there are no blood vessels in the tissue. What type of tissue is this?

Question

Quizplus · Accepted Answer

There are a few hints in this question that the correct answer is epithelial:
We are told that it comes from the stomach lining, which is made of epithelial tissue.
No extracellular matrix (so we know it is not bone tissue).
Cells that are tall and thin refers to the appearance of the simple columnar epithelium or stratified columnar epithelium - both are types of epithelial tissue.
No blood vessels. Epithelial tissue does not contain blood vessels.
Connective tissue is the tissue that serves s the framework of the body, providing structure, support, and protection for the organs. Connective tissue could be described as an extracellular matrix of fibers and gelatinous material.
Bone is a particular type of connective tissue that consists of a rigid extracellular matrix. Lacunae are small spaces in the bone tissue. Each lacuna contains an osteocyte, which is a mature bone cell.
Muscle tissue can appear spindle-shaped, or cylindrical under a microscope, with a striped appearance.
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A Tissue Sample Take from the Internal Surface of the Stomach