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Ch. 8 Joints
Marieb - Human Anatomy & Physiology 7th Edition
Marieb, Hoehn7th EditionHuman Anatomy & PhysiologyISBN: 9780805359091Not the one you use?Change textbook
All textbooksMarieb, Hoehn 7th EditionCh. 8 JointsProblem 1
Chapter 8, Problem 1

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 guidance
1
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).

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Key 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:
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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:
02:17
Introduction 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:
8:20
Synovial Joints
Related Practice
Textbook Question

Factors that influence the stability of a synovial joint include

a. Shape of articular surfaces

b. Presence of strong reinforcing ligaments

c. Tone of surrounding muscles

d. All of these

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Textbook Question

Anatomical characteristics shared by all synovial joints include all except:

a. Articular cartilage

b. A joint cavity

c. An articular capsule

d. Presence of fibrocartilage

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Textbook Question

The description 'Articular surfaces deep and secure; capsule heavily reinforced by ligaments and muscle tendons; extremely stable joint' best describes

a. The elbow joint

b. The hip joint

c. The knee joint

d. The shoulder joint

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