MUSCLE NERVE CARTILAGE BONE
BONE FORMATION JOINTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Dense
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hard layers
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lie underneath the periosteum
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soft
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Detailed explanation-1: -The following statements are NOT true: (a) it has many interconnecting trabeculae is FALSE because compact bone is made up on osteons. (b) it is abundantly found in flat bones such as the skull is FALSE because compact bone is abundantly found in long bones.
Detailed explanation-2: -Compact bone consists of closely packed osteons or haversian systems. The osteon consists of a central canal called the osteonic (haversian) canal, which is surrounded by concentric rings (lamellae) of matrix. Between the rings of matrix, the bone cells (osteocytes) are located in spaces called lacunae.
Detailed explanation-3: -Compact bone is dense and composed of osteons, while spongy bone is less dense and made up of trabeculae.