Bio 252 Exam 3 Questions With Verified Answers

Bio 252 Exam 3 Questions With Verified Answers Parts of ECM - ANS protein fibers (along with elastic fibers and reticular fibers) GAG help retain water in skin proteoglycans trap salts and ions glycoproteins help attach cells to ECM collagen fibers - ANS provide resistance to longitudinal tensile/pulling forces. compression or torsion fibroblasts - ANS produce ECM- protein fibers and ground substance. most common cells found in connective tissue loose connective tissue - ANS connective tissue proper Primarily ground substance, fibroblasts. support and provide sources of oxygen and blood. dense connective tissue - ANS connective tissue proper ECM and protein fibers (collagen and or elastic), fibrous tissue, strong and allows the tissue to resist tension dense irregular tissue - ANS connective tissue proper, dense connective tissue unorganized arrangement of collagen fibers (3D) dense regular connective tissue - ANS connective tissue proper, dense connective tissue parallel arrangement of collagen fibers (1D), ligaments dense regular elastic connective tissue - ANS connective tissue proper, dense connective tissue parallel elastic fibers with randomly placed collagen. adipose tissue - ANS connective tissue proper fibroblasts and ECM present, but primarily adipocytes. Insulation, warmth, shock absorption, protection, and energy reserve. white fat: energy storage brown fat: energy burning (brown from mitochondria), heat generation by 4CP1 (disrupts H+ gradient)- high in babies to regulate body temperature. cartilage - ANS tough flexible tissue found between joints in bones, the ear, nose, and respiratory passages. Absorbs shock and resistance to force. consists of ECM and cells. Generally avascular (no blood). O2 diffusion.