Multiple Choice
Which of the following is NOT a synovial joint?
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8. Joints
Classification of Joints
2:33 minutesProblem 1
Textbook Question
Match the key terms to the appropriate descriptions.
Key:
a. fibrous joints
b. cartilaginous joints
c. synovial joints
_____ (1) exhibit a joint cavity
_____ (2) types are sutures and syndesmoses
_____ (3) bones connected by collagen fibers
_____ (4) types include synchondroses and symphyses
_____ (5) all are diarthrotic
_____ (6) many are amphiarthrotic
_____ (7) bones connected by a disc of hyaline cartilage or fibrocartilage
_____ (8) nearly all are synarthrotic
_____ (9) shoulder, hip, jaw, and elbow joints
Verified step by step guidance1
Step 1: Understand the three types of joints given: fibrous joints (a), cartilaginous joints (b), and synovial joints (c). Each has distinct structural and functional characteristics.
Step 2: Identify which joint type exhibits a joint cavity. Recall that synovial joints are characterized by the presence of a fluid-filled joint cavity, so for (1) the answer is synovial joints (c).
Step 3: Recognize that fibrous joints are connected by collagen fibers and include types such as sutures and syndesmoses. Therefore, for (2) and (3), the answers are fibrous joints (a).
Step 4: Know that cartilaginous joints are connected by cartilage (hyaline or fibrocartilage) and include synchondroses and symphyses. So, for (4) and (7), the answer is cartilaginous joints (b).
Step 5: Understand the functional classifications: synovial joints are all diarthrotic (freely movable) (5), many cartilaginous joints are amphiarthrotic (slightly movable) (6), and fibrous joints are mostly synarthrotic (immovable) (8). Finally, for (9), identify common synovial joints such as shoulder, hip, jaw, and elbow, so the answer is synovial joints (c).
Verified video answer for a similar problem:This video solution was recommended by our tutors as helpful for the problem above
Video duration:
2mKey Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Fibrous Joints
Fibrous joints are connections between bones held together by dense collagen fibers. They typically lack a joint cavity and are mostly immovable (synarthrotic) or slightly movable (amphiarthrotic). Common types include sutures found in the skull and syndesmoses like the connection between the tibia and fibula.
Recommended video:
02:41
Introduction to Fibrous Joints
Cartilaginous Joints
Cartilaginous joints connect bones using cartilage, either hyaline or fibrocartilage, without a joint cavity. They allow limited movement (amphiarthrotic) and include synchondroses, where bones are joined by hyaline cartilage, and symphyses, where fibrocartilage forms a disc between bones.
Recommended video:
02:17Introduction to Cartilaginous Joints
Synovial Joints
Synovial joints feature a fluid-filled joint cavity that permits free movement (diarthrotic). They are the most common and movable joints in the body, including the shoulder, hip, jaw, and elbow. These joints have structures like articular cartilage, synovial fluid, and a joint capsule to facilitate smooth motion.
Recommended video:
8:20Synovial Joints
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