Question

the three types of protein fibers in connective tissue are
○ deep fascia, fibrocytes, and matrix.
○ collagen, reticular, and elastic.
○ tendons, ligaments, and elastic ligaments.
○ loose, dense, and irregular.
○ cartilage, bone, and collagen.

Explanation:

To solve this, we analyze each option:

• Option 1: Deep fascia is a connective tissue layer, fibrocytes are cells, matrix is the extracellular part—none are protein fibers.
• Option 2: Collagen, reticular, and elastic are the three main protein fibers in connective tissue (collagen for strength, reticular for support, elastic for flexibility).
• Option 3: Tendons/ligaments are connective tissue structures, not protein fibers.
• Option 4: Loose/dense/irregular describe connective tissue types, not fibers.
• Option 5: Cartilage/bone are connective tissue types, collagen is a fiber but others aren't fibers.

Answer:

B. collagen, reticular, and elastic.