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Multiple Choice
Which of the following statements is NOT true of connective tissue?
A
Connective tissue cells are usually widely spaced with abundant extracellular matrix.
B
Connective tissue includes bone, blood, and adipose tissue.
C
Connective tissue is highly vascularized, except for cartilage.
D
Connective tissue covers body surfaces and lines body cavities.
Verified step by step guidance
1
Step 1: Understand the role of connective tissue in the body. Connective tissue is one of the four primary tissue types, and its main function is to support, bind, and protect other tissues and organs. It is characterized by an abundant extracellular matrix and widely spaced cells.
Step 2: Review the examples of connective tissue. Connective tissue includes diverse types such as bone, blood, adipose tissue, cartilage, and dense connective tissue. Each type has specialized functions, such as structural support (bone), energy storage (adipose), and transport (blood).
Step 3: Examine the vascularization of connective tissue. Most connective tissues are highly vascularized, meaning they have a rich blood supply. However, cartilage is an exception, as it is avascular and relies on diffusion for nutrient and waste exchange.
Step 4: Analyze the statement about connective tissue covering body surfaces and lining cavities. This function is not characteristic of connective tissue; instead, it is a function of epithelial tissue, which forms protective layers and lines cavities and surfaces.
Step 5: Conclude that the statement 'Connective tissue covers body surfaces and lines body cavities' is NOT true of connective tissue, as this is a defining feature of epithelial tissue, not connective tissue.