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John sustained a severe injury during football practice and is told that he has a torn knee cartilage. Can he expect a quick, uneventful recovery? Explain your response.
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Ch. 4 Tissue: The Living Fabric
Marieb, Hoehn11th EditionHuman Anatomy & PhysiologyISBN: 9780136874034
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TOC.tableOfContents
- Ch. 1 The Human Body: An Orientation24
- Ch. 2 Chemistry Comes Alive25
- Ch. 3 Cells: The Living Units21
- Ch. 4 Tissue: The Living Fabric20
- Ch. 5 The Integumentary System11
- Ch. 6 Bones and Skeletal Tissues19
- Ch. 7 The Skeleton14
- Ch. 8 Joints7
- Ch. 9 Muscles and Muscle Tissue26
- Ch. 10 The Muscular System26
- Ch. 11 Fundamentals of the Nervous System and Nervous Tissue19
- Ch. 12 The Central Nervous System26
- Ch. 13 The Peripheral Nervous System and Reflex Activity32
- Ch. 14 The Autonomic Nervous System19
- Ch. 15 The Special Senses26
- Ch. 16 The Endocrine System23
- Ch. 17 Blood25
- Ch. 18 The Cardiovascular System: The Heart24
- Ch. 19 The Cardiovascular System: Blood Vessels27
- Ch. 20 The Lymphatic System and Lymphoid Organs and Tissues14
- Ch. 21 The Immune System: Innate and Adaptive Body Defenses27
- Ch. 22 The Respiratory System21
- Ch. 23 The Digestive System31
- Ch. 24 Nutrition, Metabolism, and Energy Balance26
- Ch. 25 The Urinary System26
- Ch. 26 Fluid, Electrolyte, and Acid-Base Balance24
- Ch. 27 The Reproductive System24
- Ch. 28 Pregnancy and Human Development25
- Ch. 29 Heredity11
Marieb, Hoehn11th EditionHuman Anatomy & PhysiologyISBN: 9780136874034Non è quello che usi tu?Cambia libro di testo
Capitolo 4, Problema 13
Matrix is extracellular. How does the matrix get to its characteristic position?
Guida verificata passo dopo passo1
Understand that the extracellular matrix (ECM) is produced and secreted by the cells that reside within a tissue, such as fibroblasts in connective tissue.
Recognize that the matrix components, including proteins like collagen, elastin, and glycoproteins, are synthesized inside the cell and then transported to the extracellular space via exocytosis.
Learn that once secreted, these matrix molecules self-assemble or organize in the extracellular space, guided by interactions with cell surface receptors and other matrix components.
Consider the role of cell adhesion molecules and integrins, which help anchor the matrix to the cell surface, ensuring the matrix is positioned correctly relative to the cells.
Appreciate that the dynamic remodeling of the matrix by enzymes such as matrix metalloproteinases also helps maintain the matrix's characteristic structure and position over time.
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Extracellular Matrix (ECM)
The extracellular matrix is a complex network of proteins and polysaccharides secreted by cells into the space outside the cell membrane. It provides structural support and biochemical signals to surrounding cells, influencing tissue development and function.
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Bone Matrix
Secretion and Transport of Matrix Components
Cells synthesize matrix molecules internally and transport them via vesicles to the cell surface, where they are secreted into the extracellular space. This process ensures that matrix components reach their characteristic positions outside the cells.
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Matrix Assembly and Organization
Once secreted, matrix molecules self-assemble and interact with each other and cell surface receptors to form a structured and functional matrix. This organization determines the matrix’s characteristic position and mechanical properties in tissues.
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