Textbook Question
Matrix is extracellular. How does the matrix get to its characteristic position?
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Ch. 4 Tissue: The Living Fabric
Marieb, Hoehn11th EditionHuman Anatomy & PhysiologyISBN: 9780136874034
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Table of contents
- 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: 9780136874034Not the one you use?Change textbook
Chapter 4, Problem 16
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.
Verified step by step guidance1
Understand the anatomy of the knee cartilage: The knee contains menisci, which are fibrocartilaginous structures that provide cushioning and stability to the joint.
Recognize the limited blood supply to cartilage: Cartilage, especially the menisci, has a poor blood supply, which is crucial for healing because blood delivers nutrients and cells necessary for tissue repair.
Explain the implications of poor blood supply: Due to this limited vascularization, torn cartilage heals very slowly or may not heal on its own, leading to prolonged recovery times.
Consider the severity and location of the tear: Some tears, especially those in the outer edges of the meniscus where blood supply is slightly better, may heal more effectively, but most severe tears require medical intervention.
Conclude that recovery is often not quick or uneventful: Because of the cartilage's poor healing capacity, John should expect a potentially lengthy recovery process that might involve surgery, physical therapy, and careful rehabilitation.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Knee Cartilage Anatomy and Function
Knee cartilage, primarily the menisci, are C-shaped pads of fibrocartilage that cushion and stabilize the knee joint. They absorb shock and distribute weight during movement, playing a crucial role in joint health and mobility.
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Healing Capacity of Cartilage
Cartilage has limited blood supply, which restricts its ability to heal quickly or completely after injury. Unlike other tissues, torn cartilage often requires medical intervention because natural repair is slow and sometimes incomplete.
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Recovery and Treatment of Torn Knee Cartilage
Recovery from a torn knee cartilage depends on the tear's severity and treatment method, which may include rest, physical therapy, or surgery. Healing is often gradual, and a quick, uneventful recovery is unlikely without proper care and rehabilitation.
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