front 1 The structure of bone tissue suits the function. Which of the following bone tissues is adapted to support weight and withstand tension stress? A) compact bone B) spongy bone C) irregular bone D) trabecular bone | back 1 A) compact bone |
front 2 Yellow bone marrow contains a large percentage of ________. A) fat | back 2 A) fat |
front 3 3) The cell responsible for secreting the matrix of bone is the
________. | back 3 B) osteoblast |
front 4 4) What kind of tissue is the forerunner of long bones in the embryo? | back 4 d) hyaline cartilage |
front 5 5) In bone formation, a deficiency of growth hormone will cause
________. | back 5 c) decreased proliferation of the epiphyseal plate cartilage |
front 6 6) A fracture in the shaft of a bone would be a break in the
________. | back 6 c) diaphysis |
front 7 7) The term diploë refers to ________. | back 7 c) internal layer of spongy bone in flat bones |
front 8 Which of the following is a bone marking name that indicates a projection that helps to form joints? A) meatus B) ramus C) fossa D) foramen E) epicondyle | back 8 B) ramus |
front 9 Factors in preventing (or delaying) osteoporosis include ________. A) decreasing exposure to the sun B) drinking fluoridated water C) decreasing weight-bearing exercise D) increasing dietary vitamin C | back 9 B) drinking fluoridated water |
front 10 Ossification of the ends of long bones ________. A) is a characteristic of intramembranous bone formation B) is produced by secondary ossification centers C) involves medullary cavity formation D) takes twice as long as diaphysis | back 10 B) is produced by secondary ossification centers |
front 11 Which structure allows the diaphysis of the bone to increase in length until early childhood, as well as shaping the articular surfaces? A) epiphyseal line B) Haversian system C) lacunae D) epiphyseal plate | back 11 A) epiphyseal plate |
front 12 The most abundant skeletal cartilage type is ________. A) elastic B) fibrocartilage C) hyaline D) epiphyseal | back 12 C) hyaline |
front 13 Which of the following is not a function of the skeletal system? A) storage of mineralsB B) supportC C) communication D) production of blood cells (hematopoiesis) | back 13 C) communication |
front 14 What is the structural unit of compact bone? A) osseous matrix B) spongy bone C) the osteon D) lamellar bone | back 14 C) the osteon |
front 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) chondrocytes and osteocytes C) marrow and osteons D) osteoblasts and osteoclasts | back 15 D) osteoblasts and osteoclasts |
front 16 The periosteum is secured to the underlying bone by dense connective tissue called ________. A) the struts of bone known as spicules B) perforating (Sharpey's) fibers C) Volkmann's canals D) a bony matrix with hyaline cartilage | back 16 B) perforating (Sharpey's) fibers |
front 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) blood vessels and nerve fibers D) yellow marrow and spicules | back 17 C) blood vessels and nerve fibers |
front 18 What are the small spaces in bone tissue that are holes in which osteocytes live called? A) Haversiancanals B) lacunae C) Volkmann's canals D) trabeculae | back 18 B) lacunae |
front 19 For intramembranous ossification to take place, which of the following is necessary? A) A bone collar forms around the cartilage model. B) An ossification center forms in the fibrous connective tissue. C) A medullary cavity forms. D) The cartilage matrix begins to deteriorate. | back 19 B) An ossification center forms in the fibrous connective tissue. |
front 20 The process of bones increasing in width is known as ________. A) concentric growth B) appositional growth C) long bones reaching adult length and width D) closing of the epiphyseal plate | back 20 B) appositional growth |
front 21 Bones are constantly undergoing resorption for various reasons. Which of the following cells accomplishes this process? A) stem cell B) osteoclast C) osteoblast D) osteocyte | back 21 B) osteoclast |
front 22 Which hormone increases osteoclast activity to release more calcium ions into the bloodstream? A) parathyroid hormone B) calcitonin C) thyroxine D) estrogen | back 22 A) parathyroid hormone |
front 23 The universal loss of mass seen in the skeleton, which begins about the age of 40, ________. A) is slower in females than in males B) reflects incomplete osteon formation and mineralization C) is absolutely uniform throughout the skeleton D) is greater in African Americans than in Northern Europeans | back 23 B) reflects incomplete osteon formation and mineralization |
front 24 Wolff's law is concerned with ___. | back 24 b) the thickness and shape of a bhone being dependent on stresses placed upon it |
front 25 Cranial bones develop ___. | back 25 b) within fibrous membranes |
front 26 Which of the following glands or organs produces hormes that tend to
"decrease" blood calcium levels? | back 26 b) thyroid |
front 27 Osteomyelitis is ___. | back 27 c) due to pus-forming bacteria |
front 28 Cartilage grows in two ways, appositional and interstitial. What is
appositional growth? | back 28 b) the secretion of new matrix against the external face of existing cartilage |
front 29 Which of the following statements best describes interstitial growth? | back 29 d) Chondrocytes in the lacunae divide and secrete matrix, allowing the cartilage to grow from within. |
front 30 In the epiphyseal plate, cartilage grows ___. | back 30 b) by pushing the epiphysis away from the diaphysis |
front 31 Spongy bones are made up of a framework called ___. | back 31 c) trabeculae |
front 32 Osteogenesis is the process of ___. | back 32 c) bone formation |
front 33 Lengthwise, long bone growth during infancy and youth is exclusively
through ___. | back 33 a) interstitial growth of the epiphyseal plates |
front 34 Growth of bones is controlled by a symphony of hormones. Which
hormone is important for bone growth during infancy and childhood? | back 34 c) growth hormone |
front 35 In some cases the epiphyseal plate of the long bones of children
closes too early. What might be the cause? | back 35 b) elevated levels of sex hormones |
front 36 Normal bone formation and growth are dependent on the adequate intake
of ___. | back 36 a) calcium, phosphate, and vitamin D |
front 37 Ostealgia is ___, | back 37 c) pain in a bone |