Psio 201--Exam 2-- University Of Arizona - Questions & Solutions

3 Steps of Repair for Bone Fractures {Ans: 1. Fracture hematoma formation 2. Callus formation 3. Bone remodeling}Osteons {Ans: The functional units of compact bone}Synovial {Ans: Fluid between bones}Cartilage Tissue {Ans: Chondrocytes; gel-like substance containing proteoglycan, elastic, collagen, or reticular fibers}Parathyroid Hormone Target Tissues {Ans: Bone, kidney, intestines}Appositional Growth {Ans: Growth at outer surface; growth in width}Fetus Bones {Ans: Composed of mesenchyme and hyaline cartilage}Fontanels {Ans: Soft spots of skull; Membranous in infant}Compact Bone Organization {Ans: Solid network of bone organized in concentric ring structures called osteons; Osteocytes housed in lacunae}Tx for Bone Fractures {Ans: Immobilization, Reduction}Osteoblasts {Ans: Build bone}Synarthrosis {Ans: A joint which is immovable}Why is bone considered an organ? {Ans: It contains osseous (connective) tissue, blood vessels, nerves, lymphatic vessels, cartilage, and connective tissue coverings}Tx for Bone Fractures {Ans: immobilization and reduction}Scurvy (Organic) {Ans: Vitamin C deficiency impairs collagen synthesis and leads to brittle bones}Open (compound) {Ans: Complete, displaced fracture in which one or more broken pieces of bone break the skin}Compact Bone Location {Ans: External layer of all bones; Diaphysis of long bones}Traumatic {Ans: Normal bone experiencing abnormal forces}Calcitonin