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Multiple Choice
Which of the following structures is not composed of cuboidal epithelium?
A
Kidney tubules
B
Ducts of sweat glands
C
Alveoli of the lungs
D
Thyroid follicles
Verified step by step guidance
1
Understand the characteristics of cuboidal epithelium: Cuboidal epithelial cells are cube-shaped and are typically found in tissues that perform secretion and absorption.
Identify the structures listed in the problem: Kidney tubules, ducts of sweat glands, alveoli of the lungs, and thyroid follicles.
Recall the typical locations of cuboidal epithelium: Cuboidal epithelium is commonly found in kidney tubules and thyroid follicles, where it aids in secretion and absorption.
Consider the function and structure of alveoli: Alveoli are tiny air sacs in the lungs where gas exchange occurs. They are lined with simple squamous epithelium, which is thin and flat to facilitate efficient gas exchange.
Determine which structure does not match the characteristics of cuboidal epithelium: Since alveoli are lined with simple squamous epithelium, they are not composed of cuboidal epithelium.