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FUNCTIONAL CLASSIFICATION Joints are commonly classified on their functional characteristics, using the amount of movement allowed as the criterion. Functionally, joints may be called synarthroses, amphiarthroses, or diarthroses. Joints with a very tight union that allows no movement are synarthroses (syn = union + arthro = joint). They include sutures between the cranial bones and the joints between the teeth and their sockets. Joints allowing a limited movement are amphiarthroses (amphi = two sides), and include the intervertebral discs and the pubic symphysis. Joints that allow a large range of movement are known as diarthroses (di= apart). As you may suspect, they include the shoulder, elbow, knee, and most of the remaining joints of the body. Identifying Joints by Function You will review the functional classification of joints in this observational exercise. 1. Identify the functional category of the joints as synarthroses, amphiarthroses, or diarthroses by completing the labels in Figure 12.3. 1. diathroses 2. 3. 4. 5. 6. 7. 8. 9. 2. Using a model of an articulated skeleton or a chart from your lab, identify the joints as synarthroses, amphiarthoses, and diarthroses.

FUNCTIONAL CLASSIFICATION Joints are commonly classified on their functional characteristics, using the amount of movement allowed as the criterion. Functionally, joints may be called synarthroses, amphiarthroses, or diarthroses. Joints with a very tight union that allows no movement are synarthroses (syn = union + arthro = joint). They include sutures between the cranial bones and the joints between the teeth and their sockets. Joints allowing a limited movement are amphiarthroses (amphi = two sides), and include the intervertebral discs and the pubic symphysis. Joints that allow a large range of movement are known as diarthroses (di= apart). As you may suspect, they include the shoulder, elbow, knee, and most of the remaining joints of the body. Identifying Joints by Function You will review the functional classification of joints in this observational exercise. 1. Identify the functional category of the joints as synarthroses, amphiarthroses, or diarthroses by completing the labels in Figure 12.3. 1. diathroses 2. 3. 4. 5. 6. 7. 8. 9. 2. Using a model of an articulated skeleton or a chart from your lab, identify the joints as synarthroses, amphiarthoses, and diarthroses.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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FUNCTIONAL CLASSIFICATION Joints are commonly classified on their functional characteristics, using the amount of movement allowed as the criterion. Functionally, joints may be called synarthroses, amphiarthroses, or diarthroses. Joints with a very tight union that allows no movement are synarthroses (syn union + arthro joint). They include sutures between the cranial bones and the joints between the teeth and their sockets. Joints allowing a limited movement are amphiarthroses (amphi = two sides), and include the intervertebral discs and the pubic symphysis. Joints that allow a large range of movement are known as diarthroses (di= apart). As you may suspect, they include the shoulder, elbow, knee, and most of the remaining joints of the body. Identifying Joints by Function You will review the functional classification of joints in this observational exercise. 1. Identify the functional category of the joints as synarthroses, amphiarthroses, or diarthroses by completing the labels in Figure 12.3. 1. diathroses 2. T 3. 4. 5. 6. 7. 8. 9. 2. Using a model of an articulated skeleton or a chart from your lab, identify the joints as synarthroses, amphiarthoses, and diarthroses. Detail of a Synovial Diarthrosis: The Knee You have learned that synovial joints allow the greatest range of movement. Consequently, they are functionally classified as diarthroses. The range is provided by the presence of the liquid-filled space between the opposing bones, which is held in place by the fibrous capsule. These joints lack the restrictive, binding tissues that are seen in other less mobile joints. To strengthen the synovial joint, ligaments are present that extend from one bone to the other. Extracapsular ligaments extend from bone to bone external to the articular capsule, and intracapsular ligaments are loca complex inints such as the knee and shoulder, one or more expan hot absorbs shocks. In
Transcribed Image Text:FUNCTIONAL CLASSIFICATION Joints are commonly classified on their functional characteristics, using the amount of movement allowed as the criterion. Functionally, joints may be called synarthroses, amphiarthroses, or diarthroses. Joints with a very tight union that allows no movement are synarthroses (syn union + arthro joint). They include sutures between the cranial bones and the joints between the teeth and their sockets. Joints allowing a limited movement are amphiarthroses (amphi = two sides), and include the intervertebral discs and the pubic symphysis. Joints that allow a large range of movement are known as diarthroses (di= apart). As you may suspect, they include the shoulder, elbow, knee, and most of the remaining joints of the body. Identifying Joints by Function You will review the functional classification of joints in this observational exercise. 1. Identify the functional category of the joints as synarthroses, amphiarthroses, or diarthroses by completing the labels in Figure 12.3. 1. diathroses 2. T 3. 4. 5. 6. 7. 8. 9. 2. Using a model of an articulated skeleton or a chart from your lab, identify the joints as synarthroses, amphiarthoses, and diarthroses. Detail of a Synovial Diarthrosis: The Knee You have learned that synovial joints allow the greatest range of movement. Consequently, they are functionally classified as diarthroses. The range is provided by the presence of the liquid-filled space between the opposing bones, which is held in place by the fibrous capsule. These joints lack the restrictive, binding tissues that are seen in other less mobile joints. To strengthen the synovial joint, ligaments are present that extend from one bone to the other. Extracapsular ligaments extend from bone to bone external to the articular capsule, and intracapsular ligaments are loca complex inints such as the knee and shoulder, one or more expan hot absorbs shocks. In
Ⓒbluedoor, LLC the knee includes the patellar ligament, which is an extension of the large patellar tendon from the quadriceps muscle group of the thigh. It connects the patella to the tibial tuberosity and stabilizes the knee anteriorly. The movements of the knee joint are cushioned by numerous bursae, including the overwatniol suprapatellar bursa, the subcutaneous prepatellar bursa, the deep infrapatellar bursa, and ten others. belin 6 afnsm Delete Backspace 8 vertybinisupaano) anem -3 1 W Konitelqmos vd its no to labom s phict Figure 12.3: Functional classification of joints 610
Transcribed Image Text:Ⓒbluedoor, LLC the knee includes the patellar ligament, which is an extension of the large patellar tendon from the quadriceps muscle group of the thigh. It connects the patella to the tibial tuberosity and stabilizes the knee anteriorly. The movements of the knee joint are cushioned by numerous bursae, including the overwatniol suprapatellar bursa, the subcutaneous prepatellar bursa, the deep infrapatellar bursa, and ten others. belin 6 afnsm Delete Backspace 8 vertybinisupaano) anem -3 1 W Konitelqmos vd its no to labom s phict Figure 12.3: Functional classification of joints 610
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