PRIN OF ANAT & PHYS WILEY PLUS ACCESS
15th Edition
ISBN: 9781119659488
Author: Tortora
Publisher: WILEY
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Textbook Question
Chapter 9, Problem 1CP
On what basis are joints classified?
Expert Solution & Answer
Summary Introduction
To review:
The basis on which the joints are classified in the human body.
Introduction:
A joint can be defined as the region of contact between the cartilage and the bone or between two bones. Flexible connective tissues hold the two or more bones together to allow movement along with better stability. These joints perform different functions based on their location and tasks.
Explanation of Solution
The joints are classified in two ways based on their structure or anatomical characteristics and function or types of movement permitted.
From a structural point of view, the joints are classified based on the kind of connective tissue, which binds the bones and the absence or the presence of the synovial cavity. Three types of joints based on the structure are as follows:
Fibrous joints: In this type, the bones are held together by the help of the dense irregular type of connective tissues that is rich in collagen fibers. There is an absence of synovial cavity in this joint type.
Cartilaginous joints: In this type, the bones are held together by cartilages. There is an absence of synovial cavity in this joint type.
Synovial joints: In this type, the bones forming the joint are encapsulated in a structure known as a synovial joint. The bones forming this joint are attached by dense and irregular type of connective tissue consisting of the articular capsule and some accessory structures like the ligaments.
From the functional point of view, the joints are classified by degree of movement permitted by the joint. The three types of joints based on the functional aspect are as follows:
Synarthrosis: In this type, the two bones are attached in such a way that there are absolutely no movements in the joint.
Amphiarthrosis: In this type, the bones are attached in such a way that the bones are slightly movable.
Diarthrosis: In this type, the bones are attached in such a way that the bones are allowed freedom of movement.
Conclusion
Thus, the joints are classified based on their structure and function.
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Chapter 9 Solutions
PRIN OF ANAT & PHYS WILEY PLUS ACCESS
Ch. 9 - On what basis are joints classified?Ch. 9 - Which fibrous joints are synarthroses? Which are...Ch. 9 - Which cartilaginous joints are synarthroses? Which...Ch. 9 - How does the structure of synovial joints classify...Ch. 9 - What are the functions of articular cartilage,...Ch. 9 - 6. What types of sensations are perceived at...Ch. 9 - 7. In what ways are bursae similar to joint...Ch. 9 - What are the four major categories of movements...Ch. 9 - Prob. 9CPCh. 9 - 10. Which types of joints are uniaxial, biaxial,...
Ch. 9 - 11. How do the strength and tension of ligaments...Ch. 9 - 12. Using Tables 9.3 and 9.4 as a guide, identify...Ch. 9 - 13. What distinguishes the temporomandibular joint...Ch. 9 - Which tendons at the shoulder joint of a baseball...Ch. 9 - At the elbow joint, which ligaments connect (a)...Ch. 9 - 16. Why is dislocation of the femur so rare?
Ch. 9 - What are the opposing functions of the anterior...Ch. 9 - 18. Which joints show evidence of degeneration in...Ch. 9 - Which joints of the body most commonly undergo...Ch. 9 - Katie loves pretending that she's a human...Ch. 9 - Prob. 2CTQCh. 9 - Prob. 3CTQ
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