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Multiple Choice
The bones in a synovial joint are separated by a space called a(n) ______.
A
articular disc
B
periosteum
C
epiphyseal plate
D
joint cavity
Verified step by step guidance
1
Step 1: Understand the structure of a synovial joint. Synovial joints are the most common type of joint in the body and are characterized by the presence of a fluid-filled space between the articulating bones.
Step 2: Learn the components of a synovial joint. These include the articular cartilage, synovial membrane, synovial fluid, joint cavity, ligaments, and sometimes additional structures like articular discs.
Step 3: Define the term 'joint cavity.' The joint cavity is the space within the synovial joint that is filled with synovial fluid, which reduces friction and allows smooth movement of the bones.
Step 4: Compare the other options provided in the question. For example, the 'articular disc' is a fibrocartilage structure that may be present in some synovial joints, but it does not refer to the space. The 'periosteum' is a connective tissue layer covering the bone, and the 'epiphyseal plate' is related to bone growth, not joint structure.
Step 5: Conclude that the correct answer is 'joint cavity,' as it specifically refers to the space separating the bones in a synovial joint.