Human Anatomy (8th Edition) - Standalone book
8th Edition
ISBN: 9780321883322
Author: Frederic H. Martini, Robert B. Tallitsch
Publisher: PEARSON
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Chapter 5, Problem 2RC
Which of the following could cause premature closure of the epiphyseal cartilages?
(a) increased levels of sex hormones
(b) high levels of vitamin D3
(c) too little parathyroid hormone
(d) an excess of growth hormone
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3) Parathyroid hormone:
a) is secreted when blood calcium levels are too high.
b) is required for the synthesis of collagen fibers.
c) stimulates osteoclasts to break down bone tissue.
d) stimulates cells in the epiphyseal plate to divide.
Bodybuilders often take anabolic steroids to increase theirmuscle mass. How do these steroids achieve this effect?(Common side effects of anabolic steroid abuse include heartfailure, violent behavior, and liver cancer.)
Which of the following hormones are released when blood calcium levels fall?
Question 97 options:
a)
Calcitonin
b)
Thyroxin
c)
Hydroxyapatite
d)
Parathyroid hormone
Chapter 5 Solutions
Human Anatomy (8th Edition) - Standalone book
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- 9) This cell is active once the matrix of bone calcifies. The cells sits in a lacunae. a) osteoprogenitor cells b) osteoclasts (c) osteocytes d) osteoblasts e) chondroblasts 10) What are the extracellular fluid filled extensions of the lacunae called? a) interosteonic (perforating) canals b) osteonic (Haversian) canals d) canaliculi e) perforating (Sharpey's) fibers c) concentric lamellae 11) Which two minerals are needed in large quantities when bones are growing? a) calcium and chlorine d) manganese and sulfur b) magnesium and sulfur c) calcium and phosphorous e) potassium and phosphorous 12) In endochondral ossification, what is the original source of osteoblasts? a) endoderm (b) mesenchyme e) ectoderm c) mucus connective tissue (d) osteoprogenitor cellsarrow_forwardGrowth hormone, or GH, is used medically to spur growth in children who are unusually short because they have a GH deficiency. However, it is useless for a short but otherwise normal 25-year-old to request GH treatment in order to grow taller. Why?arrow_forwardWhich of the following hormones is NOT important in calcium homeostasis? a.)Calcitonin b.)Parathyroid hormone c.)1,25-dihydroxy cholecalciferol d.)Glucagonarrow_forward
- Which of the following outcomes would be most likely to occur due to a vitamin K deficiency? Select one: a. Impaired collagen synthesis at epiphyseal growth plates b. Increased bone mineralization leading to large, deformed bones c. Impaired phosphorus uptake by osteoclasts d. Impaired calcitonin production by thyroid gland e. Impaired Ca2+ uptake by osteoblastsarrow_forwardGrowth hormone is administered to people who have pituitary dwarfism. Parents wanting their normal children to be taller have requested the treatment for them. Do you think this is a wise request? Why or why not?arrow_forwardWhat effect does calcitonin have on the calcium concentrations of bone? A. ) no effect on bone calcium B.) decreases bone calcium C.) stimulates bone osteoclasts D.) increases bone calciumarrow_forward
- _____1_____ is the hormone produced by the parathyroid gland that causes bone resorption; ______2______ is the hormone produced by the parathyroid gland that increases deposition of bone matrix.A: 1) Calcitonin ; 2) PTHB: 1) Calcitonin ; 2) EstrogenD: 1) PTH ; 2) CalcitoninE: 1) PTH ; 2) CholecalciferolF: 1) RANK-L ; 2) OPGarrow_forwardBone deposition (formation) occurs where bone is injured or added strength is needed. During this time, there will e the most abundant levels of which bone cells? a) Osteoclasts b) Osteoblasts c) Chondrocytesarrow_forwardSelect the best answer or answers from the choices given: Where within the epiphyseal plate are the dividing cartilage cells located? (a) between the calcification zone and the ossification zone, (b) between the hypertrophic zone and the calcification zone, (c) between the resting zone and the hypertrophic zone, (d) in the primary ossification center.arrow_forward
- Match the cells listed in column B with the descriptions in column A. More than one answer may be correct. Column A Column B (1) located within lacunae (a) osteoblasts (2) secrete matrix (b) osteocytes (3) maintain bone matrix (c) osteoclasts (4) destroy bone tissue (d) chondrocytes (5) located in the endosteumarrow_forwardWhich hormone is responsible for gigantism and acromegaly?arrow_forwardComplete the following analogies. Collagen is to bone flexibility as [ Select ] ["hydroxyapetite", "calcitonin", "parathyroid hormone", "calcitriol", "cholecalciferol"] is to bone stiffness Osteoblasts is to osteogenesis as [ Select ] ["osteocytes", "osteoprogenitor cells", "osteoclasts", "osteosarcome", "chondrocytes", "fibroblasts"] is to osteolysisarrow_forward
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