Multiple Choice
The presence of uric acid crystals in the joints is a hallmark of __________.
8. Joints
Structural Class: Fibrous Joints
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In a baby, the bones of the skull are joined by fibrous connective tissue. Over time, these bones fuse together to form ossified immovable joints. How would you classify these joints?
A
Amphiarthroses in a young skull, synarthroses in an older skull.
B
Fibrous joints in a young skull, synostoses in an older skull.
C
Cartilaginous joints in a young skull, synostoses in an older skull.
D
Fibrous joints throughout life.
Verified step by step guidance1
Understand the types of joints: Joints can be classified based on their structure and function. The main structural classifications are fibrous, cartilaginous, and synovial joints.
Identify the type of joint in a young skull: In infants, the bones of the skull are connected by fibrous connective tissue, which are known as sutures. These are classified as fibrous joints.
Consider the changes over time: As the child grows, these fibrous joints undergo a process called ossification, where the connective tissue is replaced by bone, leading to the fusion of the skull bones.
Classify the fused joints in an older skull: Once the bones are fused, the joints are known as synostoses. Synostoses are immovable joints where the bones have completely ossified.
Conclude the classification: Therefore, the joints in a young skull are fibrous joints, and as they ossify in an older skull, they become synostoses.
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