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Ch. 8 Articulations
Amerman - Human Anatomy & Physiology 2nd Edition
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822Not the one you use?Change textbook
Chapter 8, Problem 6

The articulating ends of bones of synovial joints are covered in______. The remaining internal surfaces of the joint are lined by the_____, which produces synovial fluid. The entire joint is encased by the_____, which is composed of dense, irregular collagenous connective tissue.

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Step 1: Understand the structure of synovial joints. Synovial joints are specialized joints that allow free movement between articulating bones. They are characterized by specific components such as cartilage, synovial membrane, synovial fluid, and a joint capsule.
Step 2: Identify the tissue covering the articulating ends of bones. The articulating ends of bones in synovial joints are covered by articular cartilage, which is a type of hyaline cartilage. This cartilage reduces friction and absorbs shock during movement.
Step 3: Determine the lining of the remaining internal surfaces of the joint. The internal surfaces of the joint, excluding the areas covered by articular cartilage, are lined by the synovial membrane. This membrane is responsible for producing synovial fluid, which lubricates the joint and nourishes the cartilage.
Step 4: Recognize the structure encasing the entire joint. The entire synovial joint is encased by the joint capsule, also known as the articular capsule. This capsule is composed of dense, irregular collagenous connective tissue, providing strength and stability to the joint.
Step 5: Summarize the components. The articulating ends of bones are covered by articular cartilage, the remaining internal surfaces are lined by the synovial membrane, and the entire joint is encased by the joint capsule made of dense, irregular collagenous connective tissue.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Articular Cartilage

Articular cartilage is a smooth, white tissue that covers the ends of bones in synovial joints. It provides a low-friction surface for joint movement and absorbs shock, helping to protect the underlying bone during activities such as walking or running.
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Hyaline Cartilage

Synovial Membrane

The synovial membrane is a specialized connective tissue that lines the inner surfaces of synovial joints, excluding the areas covered by articular cartilage. It plays a crucial role in joint health by producing synovial fluid, which lubricates the joint and nourishes the cartilage.
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Synovial Joints

Joint Capsule

The joint capsule is a fibrous structure that encases the entire synovial joint, providing stability and protection. Composed of dense, irregular collagenous connective tissue, it helps maintain the integrity of the joint while allowing for a range of motion.
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Structural Joint Classifications
Related Practice
Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

Cartilaginous joints are synarthroses.

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Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

Fibrous joints are united by collagen fibers.

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Textbook Question

Match the following terms with the correct definition from the right column. 

Plane joint      

Saddle joint     

Ball-and-socket joint     

Condylar joint     

Pivot joint     

Hinge joint

a. Uniaxial joint in which the rounded articular surface of one bone fits into a groove of another bone and is held in place by a ligamentous ring

b. Multiaxial joint in which the spherical articular surface of one bone fits into a cup or socket of another bone

c. Nonaxial joint in which two flat surfaces glide over each other

d. Uniaxial joint in which the convex articular surface of one bone fits into a concave articular depression

e. Biaxial joint in which the oval, convex articulating surface of one bone fits into the shallow depression of another bone

f. Biaxial joint in which each articular surface has both convex and concave regions

Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

A syndesmosis is a type of cartilaginous joint.

Textbook Question

What is/are the function(s) of synovial fluid?

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Textbook Question

Which of the following correctly describes the function of a ligament?

a. It connects a muscle to its attachment point, such as a bone.

b. It is a fluid-filled structure that minimizes friction during movement.

c. It connects two bones to each other in a joint.

d. It surrounds a tendon and protects it in high-stress areas.

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