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Questions and Answers
Which of the following is classified as a fibrous joint?
What are sutures?
Bony edges interlocked by short fibers.
What are syndesmoses?
Bones connected exclusively by ligaments.
What are gomphoses?
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What are synchondroses?
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What are symphyses?
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All joints of the limbs are classified as __________ joints.
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Muscle tone is a natural contributor to joint stability.
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The role of synovial fluid is to __________.
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Flattened fibrous sacs that reduce friction between adjacent structures are called __________.
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The term 'nonaxial movement' means __________.
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Extension is the reverse of flexion.
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__________ refers to movement of the radius around the ulna when the palms of the hands are rotated so that the palms are facing upward.
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Shrugging one's shoulders primarily involves __________.
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Which of the following is a condylar joint?
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Which of the following is NOT a synovial joint?
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The oblique popliteal ligament __________.
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Which of the following contributes to instability of the shoulder joint?
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The depth of the socket in a ball-and-socket joint does not usually affect joint stability.
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Chewing would involve the __________ joint.
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The presence of uric acid crystals in the joints is a hallmark of __________.
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Study Notes
Types of Joints
- Fibrous Joints: Include gomphoses, sutures, and syndesmoses.
- Gomphoses: Characterized as "peg-in-socket" joints where teeth are anchored in their sockets.
- Sutures: Joint type where bony edges interlock through short fibers.
- Syndesmoses: Joints where bones are connected solely by ligaments.
Cartilaginous Joints
- Synchondroses: Joints where bones are united by a plate of hyaline cartilage.
- Symphyses: Joints that connect bones mainly through fibrocartilage.
Synovial Joints
- All limb joints are categorized as synovial joints, characterized by a joint cavity and fluid.
- Bursae: Flattened fibrous sacs that reduce friction in synovial joints, filled with synovial fluid.
Movement Types
- Nonaxial Movement: Involves only slipping movements with no rotation.
- Uniaxial Movement: Characterized by movement along a single plane.
- Biaxial Movement: Involves movement in two planes.
- Multiaxial Movement: Allows movement across all three planes of space.
Joint Functionality and Stability
- Muscle tone contributes significantly to joint stability.
- Synovial fluid lubricates joints, facilitating smoother movements.
Specific Movements
- Supination: Refers to the rotation of the radius around the ulna, with palms facing upward.
- Shrugging Shoulders: Primarily involves elevation and depression movements.
Joint Types and Examples
- Condylar Joint: Example includes the knuckle joint where phalanges meet metacarpals.
- Temporomandibular Joint: Involves the joint used for chewing.
Joint Stability Factors
- The depth of a ball-and-socket joint's socket significantly affects its stability.
- The small size of the glenoid cavity contributes to shoulder joint instability.
Health Conditions Related to Joints
- Presence of uric acid crystals signifies gout, indicating joint health issues.
True/False Statements
- Extension is indeed the reverse of flexion.
- The statement about joint socket depth affecting stability is false.
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Description
Test your knowledge on fibrous joints with this chapter 8 practice quiz. Explore important classifications like gomphoses, sutures, and syndesmoses. Each question will help reinforce your understanding of anatomical structures involved in fibrous joints.
