Connective Tissue Quiz

Origin of Cells from Mesenchyme

• Dermal fibroblasts, chondrocytes, osteocytes, and adipocytes originate from embryonic mesenchyme cells during development.
• Mesenchyme is a type of undifferentiated tissue that gives rise to various connective tissues.

Function of the Extracellular Matrix

• The extracellular matrix (ECM) provides structural support and stability to tissues and organs.
• It facilitates communication between cells and influences their behavior, proliferation, and differentiation.

Fibers in the Extracellular Matrix

• Collagen fibers provide tensile strength and are the most abundant fibers in the ECM.
• Elastic fibers allow tissues to resume their shape after stretching or contracting, contributing to their elasticity.
• Reticular fibers form a supportive meshwork, particularly in soft tissues like the liver and lymphoid organs.

Composition of Ground Substance

• Ground substance is composed of proteoglycans, glycoproteins, and water, providing a hydrated gel-like environment.
• It serves as a medium through which cells receive nutrients and eliminate waste.

Function of Highly Hydrated Ground Substance

• The highly hydrated nature of ground substance facilitates nutrient diffusion and waste removal, maintaining cell health.
• It provides cushioning and resistance to compression, contributing to the overall integrity of connective tissue.