Exam 2 for Human Anatomy and Physiology |, Exams of Physiology

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BIOL 220 Human Anatomy & Physiology | Fall 2007 Exam 2 November 02, 2007 MULTIPLE CHOICE, Choose the one alternative that best completes the statement or answers the question. 1) The cell responsible for secreting the matrix of bone is the: b _ A) osteocyte. B) chondrocyte. C) osteoblast. 1) osteoclast. 2) What kind of tissue is the forerunner of long bones in the embryo? 2) A) dense fibrous connective tissue B) hyaline cartilage C) fibrocartilage 1D) elastic connective tissue 3) Red bone marrow contains a large percentage of: 3) A) elastic tissue. B) blood-forming cells. C) fat. D) Sharpey's fibers, 4) A fracture in the end of a bone would be a break in the: 4) A) diaphysis. By metaphysis. C) articular cartilage. D) epiphys 5) The most abundant skeletal cartilage lype is: 5) A) fibrocartilage. B) elastic. C) hyaline. D) epiphyseal. 6) Which hormone increases osteoclast activity to release more calcium ions into the bloodstream? 6) A) estrogen B) calcitonin C) parathyroid hormone D) thyroxine 7) The canal that runs through the core of each osteon (the Haversian canal) is the site of: ?) A) blood vessels and nerve fibers. B) osleoclasts and osteoblasts. C) yellow marrow and spicules. D) cartilage and interstitial lamellae. 8) The small spaces in bone tissue that are holes in which osteocytes live are called: 8) A) lacunae. B) trabeculae. C) Haversian canals. D) Voikmann’s canals. 9) Wolff's law is concerned with: 9) A) the function of bone being dependent on shape. B) vertical growth of bones being dependent on age. C) the thickness and shape of a bone being dependent on mechanical stresses placed upon it. D) the diameter of the bone being dependent on the ratio of osteoblasts to osteoclasts.