rewritten anatomy exam 2 - Bones/Articulations Quizzes with 100% Correct Answers 2024

rewritten anatomy exam 2 - Bones/Articulations functions of bone/skeleton -Answer-support protection movement (lever) Ca and P storage hematopoesis hematopoesis -Answer-process of making blood cells lever system -Answer-muscles attached to bone form pulley, lever system sesamoid bone -Answer-specialized bones found within tendons; small, flat, and oval-shaped; increase muscle leverage and increase the longevity of tendons patella what is the epiphyseal plate made of -Answer-hyaline cartilage what is contained within the epihpysis -Answer-spongy bone red bone marrow - active type (makes blood cells - hematopoesis) marrow cavity medullary cavity -Answer-yellow bone barrow inactive form fat reservoir what is the periosteum -Answer-outer most layer of the bone - contains two layers outer layer of periosteum -Answer-fibrous - dense irregular connective tissue weaves and provides framework ligaments and tendons are weaved to the bone through the periosteum inner layer of periosteum -Answer-cellular layer osteoprogenitor cells, osteoblasts, and osteoclasts - deposit and resorb calcium salts - bone remodeling endosteum -Answer-active layer with osteoblasts and osteoclasts articular cartilage where, what, why -Answer-lines the locations of articulations at the end of the epiphysis - hyaline cartilage - cushioning and reduces friction what is the functional unit of compact bone and what is it made of -Answer-osteon - concentric layers of lamella - central canal with vessels and nerves spongy bone -Answer-lattice network of trabeculae lightens weight of bone contains red bone marrow Is bone vascular or avascular? -Answer-highly vascular blood supply to the bone -Answer-volkmanns canals - blood vessels enter compact bone through the periosteum and perpendicular to the central canals - supply central canals with blood and nutrients do babies have less, the same, or more bones than adults? -Answer-babies have more bones they eventually fuse when does bone ossification begin? -Answer-in early gestation