![]() ![]() This lack of mobility is important, because the skull bones serve to protect the brain. For example, most of the joints of the skull are held together by fibrous connective tissue and do not allow for movement between the adjacent bones. The articulating surfaces of bones at stable types of joints, with little or no mobility, are strongly united to each other. Understanding the relationship between joint structure and function will help to explain why particular types of joints are found in certain areas of the body. Conversely, joints that provide the most movement between bones are the least stable. This means that stable joints allow for little or no mobility between the adjacent bones. Importantly, joint stability and movement are related to each other. These joints are designed for stability and provide for little or no movement. However, the bones of other joints may be joined to each other by connective tissue or cartilage. At these joints, the articulating surfaces of the adjacent bones can move smoothly against each other. Many joints allow for movement between the bones. Joints are the location where bones come together. The adult human body has 206 bones, and with the exception of the hyoid bone in the neck, each bone is connected to at least one other bone. Discuss the structure of specific body joints and the movements allowed by each.Define and identify the different body movements.Describe the characteristic features for fibrous, cartilaginous, and synovial joints and give examples of each.Discuss both functional and structural classifications for body joints.Figure 9.1 Girl Kayaking Without joints, body movements would be impossible.
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