anatomy answer key - 1 Which of following is a function of the skeletal system E all of the above 2 Which of the following bones is classified

anatomy answer key - 1 Which of following is a function of...

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1) Which of following is a function of the skeletal system?E) all of the above2) Which of the following bones is classified as "irregular" in shape?A) vertebra 3) The carpal bones are examples of ________ bones.D) short 4) A rib is an example of a ________ bone.B) flat5) The region of a long bone between the end and the shaft is known as the ________.E) metaphysic6) Which of the following labels best matchesosteocyte?D) mature bone cell7) Cells that secrete the organic components of the bone matrix are calledE) osteoblasts.8) ________ are squamous cells that develop into osteoblasts.E) Osteoprogenitor cells9) Through the action of osteoclasts,B) bony matrix is dissolved.10) Which of the following chemicals is not present in bone?D) chondroitin sulfate.11) The narrow passageways that contain cytoplasmic extensions of osteocytes are calledA) canaliculi.12) The central canal of an osteon containsC) blood vessels.13) The interconnecting tiny arches of bone tissue found in spongy bone are calledC) trabeculae.14) The type of bone that is adapted to withstand stresses that arrive from many directions is ________ bone. C) trabecular 15) The medullary cavity of bones containsE) marrow.16) The shaft of a long bone is called theA) diaphysis.17) The lining of the medullary cavity is called theC) endosteum.
18) What structure allows a bone to grow in length?C) epiphyseal plate19) The following are major steps in the process of intramembranous ossification.1. Clusters of osteoblasts form osteoid that becomes mineralized.2. Osteoblasts differentiate within mesenchymal connective tissue.3. Spicules of bone radiate out from the ossification centers.4. Mesenchymal cells aggregate.A) 4, 2, 1, 3. 20) Which of the following is formed by intramembranous ossification?21) Endochondral ossification begins with the formation of a(n)A) cartilage model.22) The following are important steps in the process of endochondral ossification.1. Enlarged chondrocytes die.2. Osteoblasts replace calcified cartilage with spongy bone.3. Chondrocytes enlarge and the surrounding matrix begins to calcify.4. Blood vessels invade the perichondrium.5. Perichondrial cells become osteoblasts and produce a thin shell of bone.The correct order for these events isC) 3, 1, 5, 4, 2. 23) Secondary ossification centers occurD) in the epiphyses.24) When production of sex hormones increases at puberty, epiphyseal platesB) become narrower.25) The most abundant mineral in the human body isC) calcium.26) Elevated levels of calcium ion in the blood stimulate the secretion of the hormoneD) calcitonin.27) Osteoclast-activating factor does all of the following, except that itC) is released in large amounts early in life.28) The hormone calcitonin functions toB) decrease the level of calcium ion in the blood.

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