A skeletal articulation where bones are firmly united by dense fibrous connective tissue is designated as _____________ ?
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Answer: A. Fibrous joint
Explanation
Fibrous joints feature bones connected directly by tough collagen fibers without any intervening joint cavity present. The dense connective tissue holding these skeletal elements together restricts movement, resulting in immovable or slightly movable joints. Sutures found between the plates of the human skull provide a classic example of this sturdy fibrous connection. Cartilaginous joints unite bones using cartilage, allowing slightly more flexibility than rigid fibrous joints in the human body. Synovial joints contain a fluid-filled cavity surrounded by a capsule, enabling a wide range of free movement. Ball and socket joints represent a highly mobile subtype of synovial joint found in human shoulders and hips.
Cartilaginous joints rely on flexible cartilage rather than dense fibrous connective tissue to unite adjacent skeletal elements. Synovial joints feature fluid-filled capsules designed specifically to facilitate extensive movement rather than rigid structural fixation. Ball and socket joints offer multi-axial rotation and wide movement ranges unlike tightly bound immovable fibrous joints.
- Subject
- Everyday Science
- Category
- Everyday Science
- Topic
- —
- Difficulty
- medium
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