BIOS 1300 Ohio University Exam 3 Nielson (study guide with latest updates 2023) verified 100%

BIOS 1300 Ohio University Exam 3 Nielson (study guide with latest updates 2023) verified 100% Joint - point where two bones meet **do not have to be movable (skull sutures) 3 functions of joints - 1. link bone to skeletal system 2. permit movement 3. protect soft organs 2 joint classifications - function and structure Joint classification by function: - the amount of movement possible Joint classification by structure: - how the bones are held together...material...joint cavity Three functional groups of joints and their amount of movement? - Synarthrosisimmobile Amphiarthrosis- slight movement Diarthrosis- freely mobile What are the 4 functional joint groups? - bony, fibrous, cartilaginous, and synovial MEMORIZE the table: slide 5 of week 7 lecture 1 - What is it called when sutures ossify completely? - synostosis Synovial Joint - joint cavity filled with synovial fluid Which synovial joint is mobile and which is freely mobile: elbow and shoulder - Shoulder- freely mobile Elbow- mobile Which class do most joints in the body fall into? - Synovial joints Complications of damage to synovial joints? - pain, impaired mobility and quality of life Periosteum of bone is continuous with ____________? - fibrous capsule What is the fibrous capsule of bone made out of? - connective tissue The fibrous capsule of bone is continuous with _____? - Peristeum What two substances make up the synovial membrane? - fibroblasts and macrophages What is in the joint cavity of bone? - synovial fluid What makes the articular cartilage of bone? - hyaline What is the purpose of bone ligament? - Give the joint reinforcement and strength 3 functions of the synovial fluid: - nourishes articular cartilage removes waste from cartilage permits friction free movement Why is it important to "warm up" before exercising? - It protects your cartilage Compression vs decompression of cartilage during exercise - compression: squeezes fluid and waste out of cartilage decompression: absorbs warmed synovial fluid. Takes oxygen and nutrients to chondrocytes. What happens to your cartilage if you do not exercise? - It deteriorates more rapidly Purpose of fibrocartilage pads in some synovial joints? - absorb shock/pressure guide bones across each other and increase fit stabalize joint-- decrease chance of dislocation Ligaments - join bone to bone What type of tissue are ligaments made of? - dense regular connective tissue tendons - join muscle to bone Bursae - fibrous sac filled with synovial fluid Where are bursae located