Print A&p ch 6 flashcards - Easy Notecards

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A&p ch 6

front 1 2) Yellow bone marrow contains a large percentage of ________. A) fat B) blood-forming cells C) elastic tissue D) Sharpeyʹs fibers Answer: A	back 1 no data
front 2 3) The cell responsible for secreting the matrix of bone is the ________. A) osteocyte B) osteoblast C) osteoclast D) chondrocyte Answer: B	back 2 no data
front 3 4) What kind of tissue is the forerunner of long bones in the embryo? A) elastic connective tissue B) dense fibrous connective tissue C) fibrocartilage D) hyaline cartilage Answer: D	back 3 no data
front 4 6) A fracture in the shaft of a bone would be a break in the ________. A) epiphysis B) metaphysis C) diaphysis D) articular cartilage Answer: C	back 4 no data

front 5 12) The most abundant skeletal cartilage type is ________. A) hyaline B) elastic C) fibrocartilage D) epiphyseal Answer: A	back 5 no data
front 6 14) The structural unit of compact bone is ________. A) osseous matrix B) spongy bone C) lamellar bone D) the osteon Answer: D	back 6 no data
front 7 15) Bones are covered and lined by a protective tissue called periosteum. The inner (osteogenic) layer consists primarily of ________. A) cartilage and compact bone B) marrow and osteons C) osteoblasts and osteoclasts D) chondrocytes and osteocytes Answer: C	back 7 no data
front 8 16) The periosteum is secured to the underlying bone by dense connective tissue called ________. A) Volkmannʹs canals B) a bony matrix with hyaline cartilage C) Perforating (Sharpeyʹs ) fibers D) the struts of bone known as spicules Answer: C	back 8 no data

front 9 17) The canal that runs through the core of each osteon (the Haversian canal) is the site of ________. A) cartilage and interstitial lamellae B) osteoclasts and osteoblasts C) yellow marrow and spicules D) blood vessels and nerve fibers Answer: D	back 9 no data
front 10 18) The small spaces in bone tissue that are holes in which osteocytes live are called ________. A) lacunae B) Volkmannʹs canals C) Haversian canals D) trabeculae Answer: A	back 10 no data
front 11 20) The process of bones increasing in width is known as ________. A) closing of the epiphyseal plate B) long bones reaching adult length and width C) appositional growth D) concentric growth Answer: C	back 11 no data
front 12 21) Bones are constantly undergoing resorption for various reasons. Which of the following cells accomplishes this process? A) osteoclast B) osteocyte C) osteoblast D) stem cell Answer: A	back 12 no data

front 13 22) Which hormone increases osteoclast activity to release more calcium ions into the bloodstream? A) calcitonin B) thyroxine C) parathyroid hormone D) estrogen Answer: C	back 13 no data
front 14 23) Vertebrae are considered ________ bones. A) long B) flat C) short D) irregular Answer: D	back 14 no data
front 15 27) Cranial bones develop ________. A) from cartilage models B) within fibrous membranes C) from a tendon D) within osseous membranes Answer: B	back 15 no data
front 16 32) In the epiphyseal plate, cartilage grows ________. A) by pulling the diaphysis toward the epiphysis B) by pushing the epiphysis away from the diaphysis C) from the edges inward D) in a circular fashion Answer: B	back 16 no data

front 17 33) Spongy bones are made up of a framework called ________. A) osteons B) lamellar bone C) trabeculae D) osseous lamellae Answer: C	back 17 no data
front 18 34) Osteogenesis is the process of ________. A) making a cartilage model of the fetal bone B) bone destruction to liberate calcium C) bone formation D) making collagen fibers for calcified cartilage Answer: C	back 18 no data