Multiple Choice
Which of the following best identifies simple squamous epithelium, and what is its primary function?
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4. Tissues & Histology
Introduction to Tissues & Histology
Multiple Choice
Which of the following is the correct identification and labeling for a tissue composed of multiple layers of flat cells with a free surface and a basement membrane beneath?
A
Transitional epithelium; cilia, goblet cells
B
Areolar connective tissue; lacunae, canaliculi
C
Simple cuboidal epithelium; lumen, connective tissue
D
Stratified squamous epithelium; free surface (apical), basement membrane (basal)
Verified step by step guidance1
Step 1: Understand the structure of stratified squamous epithelium. It is composed of multiple layers of flat (squamous) cells, where the topmost layer is exposed to the free surface (apical side), and the bottom layer is attached to the basement membrane (basal side).
Step 2: Compare the characteristics of stratified squamous epithelium with the other options provided. Transitional epithelium is specialized for stretching and does not consist of flat cells. Areolar connective tissue is a loose connective tissue and does not have layers of flat cells. Simple cuboidal epithelium consists of a single layer of cube-shaped cells, not multiple layers of flat cells.
Step 3: Identify the correct labeling for stratified squamous epithelium. The free surface (apical side) is the topmost layer exposed to the external environment or lumen, while the basement membrane (basal side) anchors the tissue to underlying structures.
Step 4: Recognize that stratified squamous epithelium is commonly found in areas subject to abrasion, such as the skin, mouth, and esophagus, which aligns with its structural function.
Step 5: Confirm that the correct identification and labeling for the tissue described in the problem is 'Stratified squamous epithelium; free surface (apical), basement membrane (basal).' This matches the description of multiple layers of flat cells with a free surface and a basement membrane beneath.
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