I. mucous cells ii. digestive system iii. molecules iv. stomach v. simple columnar epithelia which of the above indicates the tissue level? select one: a. iv b. v c. i d. iii

V. Simple Columnar Epithelia

Explanation: A simple columnar epithelium tissue is a uni-layered tissue. In humans beings, the simple columnar epithelium could be found in most organs of the digestive tract which includes the small intestine, stomach and large intestine.

This epithelium play huge roles in the human body like absorption, secretion, digestion and maintaining high immunity in the digestive system. It secrets mucous that protect the stomach from the gastric acid.

It is also found in the fallopian tubes where it contributes to fertility.

Simple columnar epithelium secrets surfactant cells that are necessary for respiration in humans.

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