AP I Chapter 8- Joints of the Skeletal System 1) What is a joint? Functional junctions between bones 2) How are joints classified? Structurally: fibrous‚ cartilaginous‚ synovial Functionally: immovable‚ slightly moveable‚ freely moveable 3) Describe the 3 types of fibrous joints. • Syndemosis: sheet or bundle of dense connective tissue • Sutures: only between flat bones of skull • Gomphosis: binds teeth to bony sockets 4) What is the function of the fontanels? Allows the skull to slightly
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The cartilage merges at its free edges with the internal synovial membrane lining of the joint cavity‚ containing a small amount of fluid known as the synovial fluid. The cartilage obtains nutritients from the synovial fluid. Synovial fluid plays the role of the shock absorber as it prevents friction between the bones. Ligament versus
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The Shoulder Joint.The Shoulder is an enarthrodial or ball-and-socket joint. The bones entering into its formation‚ are the large globular head of the humerus‚ received into the shallow glenoid cavity of the scapula‚ an arrangement which permits of very considerable movement‚ whilst the joint itself is protected against displacement by the strong ligaments and tendons which surround it‚ and above by an arched vault‚ formed by the under surface of the coracoid and acromion processes‚ and the coraco-acromial
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transverse Question 3- Which of these regions is NOT associated with the ventral (anterior) portion of the head: occipital oral buccal nasal orbital Question 4- Which of the following activities does NOT represent an anatomical study: observing the parts of a reproducing cell examining the surface of a bone making a section through the heart to observe its interior viewing muscle tissue through a microscope studying how the nerves conduct electrical impulses Question 5- In anatomical
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Some joints (synovial joints) allow for movement between the bones being joined (articulating bones) (1). The simplest synovial joint involves two bones‚ separated by a slight gap called the joint cavity. The ends of each auricular bone are covered by a layer of cartilage (1). Both auricular bones and the joint cavity are surrounded by a tough tissue called the auricular capsule (1). The auricular capsule has two components‚ the fibrous membrane on the outside and the synovial membrane (or synovium)
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tissue of the synovial membrane‚ which plays a substantial role in the nourishment of a vascular hyaline cartilage in synovial joints. The inflammatory process involves the synovial membrane of articular capsules‚ recesses in the joint cavity‚ and bursae. Joint cartilage is gradually damaged because the inflammation impairs both its nourishment and articular cavity drainage MiRNAs play an important role in inflammation‚ proliferation of synovial cells‚ and production of MMPs in RA synovial tissues
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B. Structurally‚ how are cartilaginous joints similar? They may be immovable or slightly movable. exeRcise 3: Questions A. Which type of synovial joint has the least amount of movement? Synarthrosis B. Why are diarthroses important for synovial joints? Diarthroses are
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CLINICAL ANATOMY Chapter 1 Summary Anatomy – science of structure and function of the body Clinical Anatomy – study of the macroscopic structures of the body as it relates to the practice of medicine and application to other health sciences Basic Anatomy – minimal study to understand the overall structure and function of the body Painting: The Anatomy Lesson of Dr. Nicolaes Tulp is a 1632 oil painting by Rembrandt housed in the Mauritshuis museum in The Hague‚ Netherlands History: Hippocrates
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In Synchondrosis: Hyaline cartilage connects the bones in this type of joint. In Symphysis: This type of joint is somewhat movable. It is made of fibrocartilage coated in hyaline cartilage. 3. a. Once again‚ from the main Joints page‚ click Synovial Joints and identify each of the following: Articulating bones - These describe the joints of the bones. Periosteum - this is a dense lyre of the vascular connective tissue enveloping the bones except at the surfaces of the joints. Articular
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aids in protecting the bones and operates as a shock absorber and allows the bones to move effortlessly. Synovial fluid is inside the joint which lubricates the joint and keeps it functioning efficiently. Osteoarthritis has to do with the loss of articular cartilage‚ the development of bony spurs at the joint margin‚ also known as osteophytes‚ it involves the inflammation of the synovial membrane and alterations to the subchondral bone. The order of which the changes in the bone‚ synovium and cartilage
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