Multiple Choice
Which structure allow osteocytes receive nutrients in spongy bone?
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6. Bones & Skeletal Tissue
Microscopic Anatomy of Bones - Trabeculae
Problem 6
Textbook Question
The branching pieces of bone in spongy bone are called:
a. Lamellae
b. Lacunae
c. Osteoclasts
d. Trabeculae
Verified step by step guidance1
Step 1: Understand the structure of spongy bone. Spongy bone, also known as cancellous bone, is characterized by a porous, lattice-like structure that provides strength while reducing weight. This structure is made up of branching pieces of bone tissue.
Step 2: Review the term 'trabeculae.' Trabeculae are the small, beam-like structures that form the lattice framework of spongy bone. They are aligned along lines of stress to provide structural support and house bone marrow.
Step 3: Differentiate trabeculae from other terms in the options. For example, 'lamellae' are concentric rings of bone matrix found in compact bone, not spongy bone. 'Lacunae' are small spaces that house osteocytes, and 'osteoclasts' are bone-resorbing cells, not structural components.
Step 4: Match the correct term to the description in the question. The branching pieces of bone in spongy bone are trabeculae, as they form the characteristic lattice structure.
Step 5: Confirm your understanding by visualizing or referencing a diagram of spongy bone to see how trabeculae contribute to its structure and function.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Spongy Bone Structure
Spongy bone, also known as cancellous bone, is a type of bone tissue characterized by a porous, lattice-like structure. This architecture provides strength while minimizing weight, allowing for efficient support and flexibility. It is primarily found in the interior of bones and is crucial for the production of blood cells in the bone marrow.
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Compact and Spongy Bone
Trabeculae
Trabeculae are the small, rod-like or plate-like structures that form the framework of spongy bone. They create a network that supports the bone's overall structure and houses bone marrow. Trabeculae are essential for distributing stress and forces throughout the bone, enhancing its strength and resilience.
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Bone Cells
Bone cells, including osteoblasts, osteocytes, and osteoclasts, play vital roles in bone formation, maintenance, and resorption. Osteoblasts are responsible for building new bone, osteocytes maintain bone tissue, and osteoclasts break down bone. Understanding these cells is crucial for comprehending how bones adapt to stress and repair themselves.
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