举一反三
- Spaces within bone or cartilage which house the living cells are called( ). A: chondrocytes B: Lacunae C: Osteoclasts D: intercalations E: Cristae
- Paratfollicular cells or C cells of thyroid also secrete calcitonin, which has the function of ( ). A: Enhancing osteoblast activity B: Promoting the conversion of bone calcium into blood calcium C: Promoting calcification of bone tissue D: Reducing blood calcium E: Elevating blood calcium
- Cartilage capsule is ( ) A: loose connective tissue at the surface of cartilage B: dense connective tissue at the surface of cartilage C: space around cartilage cells D: cartilage matrix around cartilage cells E: collagenous fibers around cartilage cells
- The following statements , _____, illustrate the functions of calcium. A: nerve cells need calcium for nerve impulse conduction B: muscle needs calcium to contract C: blood needs calcium to clot D: bone needs calcium to make itself hard
- Isogenous group is A: seen at periphery of cartilage B: seen at periphery of bone C: a group of chondrocytes within a single lacuna D: a single chondrocyte within one lacuna E: a group of immature flattened chondrocytes
内容
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Isogenous group is () A: at<br/>periphery of cartilage B: at<br/>periphery of bone C: a group<br/>of chondrocytes within a single lacuna; D: a single<br/>chondrocyte within one lacuna; E: a group<br/>of immature flattened chondrocytes
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About bone formation, which is correct ( ) A: clavicle is formed by endochondral ossification B: cartilage mode is the first step C: cartilage lacular will enter osteoblast and osteoclast D: bone remodeling only occurs in baby
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The bone on the little finger side of the forearm is called _________.
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Hematopoiesis refers to the formation of blood cells in the living body (especially in the bone marrow).____
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The hardest material produced by the body is ____. A: the enamel that makes up the outer layer of teeth B: cartilage C: bone D: muscle