Questions and Answers
What are Volkmann's canals associated with?
What are perforating fibers also known as?
Compact bone is less dense than spongy bone.
False
What is the periosteum?
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What is the purpose of outer circumferential lamella?
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Define osteon.
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What is the endosteum?
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What do inner circumferential lamellae do?
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What is highlighted in the individual lamellae of an osteon?
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What are Haversian vessels?
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What does the term 'canaliculi' refer to?
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What are trabeculae?
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What type of bone is spongy bone?
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What does the term 'osteocyte' refer to?
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What is the function of intermediate lamellae?
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What is the purpose of the central canal?
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What is a perforating canal?
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Study Notes
Bone Anatomy Key Terms
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Volkmann's Canals: Connect Haversian canals, allowing blood vessels to travel through compact bone, essential for nutrient supply.
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Perforating or Sharpey Fibers: Collagen fibers that anchor the periosteum to the bone, aiding in stability and attachment.
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Compact Bone: Dense and solid bone mass, forming the outer layer, providing strength and structural support.
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Periosteum: A dense layer of vascular connective tissue that envelops the bones, vital for growth, repair, and overall health.
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Outer Circumferential Lamella: Layers of compact bone found at the periphery, contributing to the overall stability of the bone structure.
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Osteon: The basic structural unit of compact bone, consisting of a central canal surrounded by concentric lamellae.
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Endosteum: A thin vascular membrane lining the inner surface of the bone, involved in bone remodeling and repair.
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Inner Circumferential Lamella: Layers located next to the endosteum, helping to maintain bone density and structure.
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Lamellae of an Osteon: Concentric rings of bone matrix that contain collagen fibers oriented in different directions, enhancing tensile strength.
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Haversian Vessels: Blood vessels located in the central canal of an osteon, providing essential nutrients to bone cells.
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Inner Circumferential Lamella Endosteum: A specific section that integrates the endosteum's function with the inner lamellae of the bone structure.
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Bone Marrow: Soft tissue found in the medullary cavity of bone, responsible for the production of blood cells.
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Trabeculae: The bony framework of spongy bone that forms a lattice-like structure, increasing surface area and reducing weight.
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Spongy Bone: Porous bone tissue found internally, aiding in shock absorption and reducing overall bone density.
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Canaliculi: Tiny channels that connect lacunae, allowing for communication and nutrient exchange among osteocytes.
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Osteocytes in Lacunae: Mature bone cells embedded in small cavities within the bone matrix, critical for maintenance and homeostasis.
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Intermediate Lamella: Layers that occur between osteons, contributing to the overall architecture without blood vessel connections.
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Central Canal: The core of an osteon containing blood vessels and nerves, facilitating communication within the bone.
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Perforating Canal: Channels that run perpendicular to the Haversian canals, linking the vascular networks throughout bone tissue.
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Perforating Blood Vessels: Blood vessels passing through the perforating canals, connecting external blood supplies to the bone interior.
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Perforating Fibers or Sharpey's Fibers: Fibers anchoring the periosteum, ensuring structural integrity and stability of bone surfaces.
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Description
Test your knowledge on the structure of bones with these osteon model flashcards. Each card covers key terms such as Volkmann's canals, compact bone, and periosteum. Perfect for students studying anatomy or anyone interested in bone structure.
