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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Ch. 8 Joints
Marieb, Hoehn7th EditionHuman Anatomy & PhysiologyISBN: 9780805359091
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Table of contents
- Ch. 1 The Human Body: An Orientation24
- Ch. 2 Chemistry Comes Alive25
- Ch. 3 Cells: The Living Units24
- Ch. 4 Tissue: The Living Fabric19
- Ch. 5 The Integumentary System10
- Ch. 6 Bones and Skeletal Tissues19
- Ch. 7 The Skeleton11
- Ch. 8 Joints7
- Ch. 9 Muscles and Muscle Tissue26
- Ch. 10 The Muscular System26
- Ch. 11 Fundamentals of the Nervous System and Nervous Tissue23
- Ch. 12 The Central Nervous System26
- Ch. 13 The Peripheral Nervous System and Reflex Activity28
- Ch. 14 The Autonomic Nervous System18
- Ch. 16 The Endocrine System26
- Ch. 17 Blood27
- Ch. 18 The Cardiovascular System: The Heart22
- Ch. 19 The Cardiovascular System: Blood Vessels27
- Ch. 20 The Lymphatic System and Lymphoid Organs and Tissues16
- Ch. 21 The Immune System: Innate and Adaptive Body Defenses29
- Ch. 22 The Respiratory System20
- Ch. 23 The Digestive System30
- Ch. 24 Nutrition, Metabolism, and Energy Balance26
- Ch. 25 The Urinary System25
- Ch. 26 Fluid, Electrolyte, and Acid-Base Balance24
- Ch. 27 The Reproductive System23
Marieb, Hoehn7th EditionHuman Anatomy & PhysiologyISBN: 9780805359091Not the one you use?Change textbook
Chapter 8, Problem 16
List the functions of the following elements of a synovial joint: a fibrous layer of the capsule, synovial fluid, and articular cartilage.
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Identify the fibrous layer of the capsule in a synovial joint and explain that its primary function is to provide structural support and protection by enclosing the joint, preventing dislocation, and maintaining joint stability.
Describe synovial fluid as a viscous liquid found within the joint cavity, and explain its functions: lubricating the joint surfaces to reduce friction during movement, supplying nutrients to the articular cartilage, and removing metabolic waste.
Explain that articular cartilage is a smooth, hyaline cartilage covering the ends of bones within the joint, and its main function is to absorb shock and reduce friction between the articulating bone surfaces during movement.
Summarize how these three elements work together to ensure smooth, stable, and pain-free movement of synovial joints.
Optionally, mention that the fibrous capsule also contains sensory nerves that contribute to proprioception, helping the body sense joint position and movement.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Fibrous Layer of the Joint Capsule
The fibrous layer is the outer part of the joint capsule that provides structural support and protection. It is composed of dense connective tissue that helps maintain joint stability by holding the bones together while allowing movement.
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5:59
Fibrous Layer
Synovial Fluid
Synovial fluid is a viscous liquid found within the joint cavity that lubricates the articular surfaces. It reduces friction during movement, nourishes the articular cartilage, and acts as a shock absorber to protect the joint.
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Articular Cartilage
Articular cartilage is a smooth, resilient tissue covering the ends of bones in synovial joints. It facilitates smooth movement by reducing friction and absorbs mechanical stress to prevent bone damage during joint motion.
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05:36Hyaline Cartilage
Related Practice
Textbook Question
Define joint.
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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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Textbook Question
The knee has been called 'a beauty and a beast.' Provide several reasons that might explain the negative (beast) part of this description.