What type of connective tissue fiber provides tensile strength in human tendons and ligaments?
Answer and explanation
Correct answer: D. Dense regular bundles of type I collagen fibers
Tendons and ligaments are composed of dense regular connective tissue packed with parallel bundles of type I collagen fibers, resisting uniaxially directed tension. Type III reticular fibers form delicate stroma in lymph nodes; elastin confers elasticity.
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