Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

6. Bones & Skeletal Tissue

Microscopic Anatomy of Bones - Bone Matrix

Anatomy & Physiology

6. Bones & Skeletal Tissue

Microscopic Anatomy of Bones - Bone Matrix

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Problem 3

Textbook Question

The organic portion of matrix is important in providing all but
a. Tensile strength
b. Hardness
c. Ability to resist stretch
d. Flexibility

Verified step by step guidance

Step 1: Understand the composition of the organic portion of the matrix in bone tissue. The organic matrix primarily consists of collagen fibers and ground substance, which contribute to specific properties of the bone.

Step 2: Recall the functions of collagen fibers in the organic matrix. Collagen provides tensile strength, flexibility, and the ability to resist stretching, which are essential for the structural integrity of bones.

Step 3: Contrast the organic matrix with the inorganic matrix. The inorganic matrix, primarily composed of hydroxyapatite (calcium phosphate crystals), is responsible for the hardness of bones.

Step 4: Analyze the options provided in the question. Determine which property (tensile strength, hardness, ability to resist stretch, or flexibility) is not associated with the organic portion of the matrix.

Step 5: Conclude that hardness is a property provided by the inorganic matrix, not the organic matrix, and therefore does not belong to the list of properties provided by the organic portion.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Organic Matrix in Materials

The organic portion of a material's matrix, often composed of proteins and polysaccharides, plays a crucial role in determining the material's mechanical properties. It contributes to the overall structure and function, influencing characteristics such as flexibility and tensile strength, which are essential for the material's performance in various applications.

Tensile Strength

Tensile strength refers to the maximum amount of tensile (pulling) stress that a material can withstand before failure. It is a critical property for materials used in applications where they are subjected to stretching forces. The organic matrix contributes to this property by providing a degree of elasticity and resilience.

Hardness vs. Flexibility

Hardness is a measure of a material's resistance to deformation, while flexibility refers to its ability to bend without breaking. In the context of the organic matrix, these properties can be at odds; a material that is very hard may be less flexible. Understanding the balance between these properties is essential for evaluating the overall performance of materials in practical applications.