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Which type of tissue provides support to epithelial tissue?
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4. Tissues & Histology
Introduction to Epithelial Tissue
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In epithelial tissue, long tapered cells can be described as what?
A
Transitional
B
Columnar
C
Cuboidal
D
Squamous
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Begin by understanding the different types of epithelial cells: squamous, cuboidal, columnar, and transitional. Each type has distinct shapes and functions.
Squamous cells are flat and scale-like, often found in areas where diffusion or filtration occurs, such as the alveoli in the lungs.
Cuboidal cells are cube-shaped and are typically found in glandular tissues, such as the thyroid gland, where they function in secretion and absorption.
Columnar cells are elongated and column-like, often found lining the digestive tract. Their shape allows for absorption and secretion, and they may have microvilli to increase surface area.
Transitional cells are specialized to stretch and are found in the urinary bladder. They can change shape from squamous to cuboidal as the bladder fills and empties.
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