Human Anatomy and Physiology

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1.No. Cartilage heals slowly because it lacks the blood supply necessary for the healing process.

2.The skin is subjected to friction, which wears away the surface cells, and prevents water loss from the body. A stratified squamous epithelium with its many layers stands up to abrasion than is simple epithelium (single-layer cells). Also, the stratified epithelia regenerates more efficiently than the simple epithelia. Finally, keratin is a tough waterproof protein that fills the bill for preventing desiccation and acts as a physical barrier to injurious agents. Since a mucosa is a wet membrane, it would be ineffective in preventing water loss from the deep tissues of the body.

Critical Thinking Questions on Pg. 150 #1 & 2

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Human Anatomy and Physiology

By Rima P

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