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Questions and Answers
Which cells originate from embryonic mesenchyme cells during development?
Which cells originate from embryonic mesenchyme cells during development?
What is the function of the extracellular matrix in connective tissue?
What is the function of the extracellular matrix in connective tissue?
Which fibers are present in the extracellular matrix of connective tissue?
Which fibers are present in the extracellular matrix of connective tissue?
What is the ground substance in connective tissue composed of?
What is the ground substance in connective tissue composed of?
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What is the function of the highly hydrated ground substance in connective tissue?
What is the function of the highly hydrated ground substance in connective tissue?
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Study Notes
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.
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Description
Test your knowledge on connective tissue and its various cell types and functions. Discover how mesenchyme cells differentiate into cartilage, bone, and blood, and learn about the role of connective tissue as stem cells.
