Understanding Compact and Spongy Bone
Bones provide structure, protection, and support for movement while storing essential minerals. The skeletal system consists of compact bone (cortical bone) and spongy bone (cancellous bone), each with distinct functions. Compact bone is dense, forming the outer layer of bones, offering strength and durability. Spongy bone, found inside bones, is lighter and porous, housing bone marrow for blood cell production. While compact bone provides rigidity and support, spongy bone absorbs shock and reduces skeletal weight.
Differences Between Compact and Spongy Bone
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FAQs on Difference Between Compact and Spongy Bone
1. What is the difference between compact and spongy bones?
Compact bone is dense and forms the outer layer of bones, providing strength and support. Spongy bone is lighter, found inside bones, and contains spaces that house bone marrow.
2. What is the difference between compact and cancellous bone function?
Compact bone supports and protects the body, while cancellous (spongy) bone facilitates metabolic activities like blood cell production.
3. Which statement best describes the differences between compact and spongy bone?
Compact bone is dense and forms the outer layer of bones, whereas spongy bone is porous and located inside bones, containing marrow.
4. What are the basic histological differences between compact and spongy bone?
Compact bone consists of tightly packed osteons, while spongy bone is composed of trabeculae with spaces filled by bone marrow.
5. What is an example of a compact bone?
The diaphysis (shaft) of long bones like the femur is primarily composed of compact bone.
6. What is osteoclast and osteoblast?
Osteoclasts are cells that break down bone tissue, while osteoblasts are cells that form new bone tissue.
7. What is an example of a spongy bone?
The epiphyses (ends) of long bones, such as the femur, contain spongy bone.
8. What differences between compact and spongy bone can be seen with the naked eye?
Compact bone appears solid and smooth, while spongy bone has a porous, honeycomb-like structure.
9. What is the difference between compact bone and cartilage?
Compact bone is a hard, mineralized tissue forming the skeleton, whereas cartilage is a flexible, rubbery tissue found in joints and other body parts.
10. What are the five main bone types?
The five main bone types are long, short, flat, irregular, and sesamoid bones.
