write notes on muscles and cartilages
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MUSCLES
Muscle is a soft tissue found in most animals. Muscle cells contain protein filaments of actin and myosin that slide past one another, producing a contraction that changes both the length and the shape of the cell. Muscles function to produce force and motion.
CARTILLAGES
A connective tissue characterized by its nonvascularity and firm consistency; consists of cells (chondrocytes), an interstitial matrix of fibers (collagen), and ground substance (proteoglycans)
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