Chapter 8, Problem 1RQ

Summary Introduction

To review:

Match the following terms with appropriate descriptions.

(a) Fibrous joints (b) Synovial joints (c) Cartilaginous joints

1. Exhibit a joint cavity 2. Types are sutures and syndesmoses 3. Bones are connected by collagen fibers 4. Types include synchondroses and symphyses 5. All are diarthrotic 6. Many are amphiarthrotic 7. Bones are connected by a disc of hyaline cartilage or fibrocartilage 8. Nearly all are synarthrotic 9. Shoulder, hip, jaw, and elbow joints

Answer to Problem 1RQ

Solution:

Description	Key
Exhibit a joint cavity	Synovial joint
Types are sutures and syndesmoses	Fibrous joint
Bones are connected by collagen fibers	Fibrous joint
Types include synchondroses and symphyses	Cartilaginous joints
All are diarthrotic	Synovial joint
Many are amphiarthrotic	Cartilaginous joints
Bones are connected by a disc of hyaline cartilage or fibrocartilage	Cartilaginous joints
Nearly all are synarthrotic	Fibrous joint
Shoulder, hip, jaw, and elbow joints	Synovial joint

Explanation of Solution

A synovial joint consists of a cavity. It is made up of dense and irregular connective tissue and forms the articular capsule. The capsule is linked with the accessory ligaments. The ends of the joint bones are surrounded by a smooth glass-like hyaline cartilage.

The fibrous joints are sutures, gomophoses, and syndesmoses. Suture is narrow and joins most of the bones of the skull together. Syndesmosis is a slightly movable joint where bones are joined together by a connective tissue.

The fibrous joints are attached to each other by a connective tissue. This tissue consists of collagen fibers. The fibrous joint has three types, namely, suture, gomphosis, and syndesmoses.

The cartilaginous joints are attached to each other by a cartilage. It allows more movement between two bones as compared to the fibrous joint. The primary cartilaginous joints are known as synchondroses and the secondary cartilaginous joint is symphysis.

The synovial joint is known to be diarthrotic. It joins with the fibrous joint capsule that is continuous with the periosteum of the fixed bones. It consists of an outer boundary of synovial cavity.

Amphiarthrosis is a kind of continuous and slightly movable joint. The contiguous bony surface can be symphysis that is connected by broadly flattened discs and an interosseous membrane. It is seen in cartilaginous joints.

The cartilaginous joint involves the fibrocartilage or the hyaline cartilage. The joints are slightly movable, that is, they are amphiarthrotic. They are connected by cartilage and allow the movement of bones.

The fibrous joints can be synarthrotic or amphiarthrotic. The sutures are synarthrotic joints and are situated between the bones of the skull. The edges of the bones are interlocked and they are bound together at suture.

The hip, shoulder, and jaw consist of a synovial joint. A synovial joint consists of a cavity. It is made up of dense and irregular connective tissue and forms the articular capsule.