ANAT.+PHYSIO.1-LAB.MAN. >CUSTOM<
20th Edition
ISBN: 9781264303106
Author: VanPutte
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 6.9, Problem 38AYP
Summary Introduction
To determine:
The way by which PTH controls the number of osteoclasts and the effects of PTH on the formation of calcitriol, Ca2+ uptake in the small intestine and reabsorption of Ca2+ from the urine.
Introduction
Parathyroid hormone (PTH) is secreted from the parathyroid glands present in the neck behind the thyroid hormone. It raises the calcium level in blood.
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For each of the following scenarios explain how blood calcium would be effected (increased or decrease) and describe the pathway that results in an alteration of calcium levels.
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Describe the homeostatic control of plasma calcium levels by answering the following two questions:
What role does calcitonin play in the maintenance of serum calcium? Give reference to the gland involved in secretion, the bone cells stimulated by calcitonin and the effects of calcitonin.
Describe the role parathyroid hormone (PTH) has in the maintenance of serum calcium, giving reference to the gland involved, the particular bone cells stimulated and the major effects of PTH.
Chapter 6 Solutions
ANAT.+PHYSIO.1-LAB.MAN. >CUSTOM<
Ch. 6.1 - Name the four components of the skeletal system.Ch. 6.1 - Describe the five major functions of the skeletal...Ch. 6.2 - What are the three types of cartilage? Which type...Ch. 6.2 - Describe the structure of hyaline cartilage. Name...Ch. 6.2 - Differentiate between oppositional and...Ch. 6.3 - Name the components of bone matrix, and explain...Ch. 6.3 - Differentiate among the characteristics and...Ch. 6.3 - Describe the formation of new bone by appositional...Ch. 6.3 - What cells give rise to osteochondral progenitor...Ch. 6.3 - How is the organization of collagen fibers...
Ch. 6.3 - Describe the structure of spongy bone. What are...Ch. 6.3 - Describe the structure of compact bone. What is an...Ch. 6.3 - Trace the pathway nutrients must follow from blood...Ch. 6.4 - List the four basic shapes of bones, and give an...Ch. 6.4 - Sketch and lable the parts of a typical long bone.Ch. 6.4 - Where are the periosteum and endosteum located,...Ch. 6.4 - What are red and yellow bone marrows? Where are...Ch. 6.4 - Compare the structure of a long bone with those of...Ch. 6.5 - Describe the formation of spongy and compact bone...Ch. 6.5 - For the process of endochondral ossification,...Ch. 6.5 - When do primary and secondary Ossification centers...Ch. 6.5 - What bones, or parts of bones, are formed from...Ch. 6.6 - Name and describe the events occurring in the four...Ch. 6.6 - Explain the process of growth at the articular...Ch. 6.6 - Describe how new osteons are produced as a bone...Ch. 6.6 - Prob. 26AYPCh. 6.6 - Prob. 27AYPCh. 6.6 - Prob. 28AYPCh. 6.7 - Why is it important for bone remodeling to occur?Ch. 6.7 - What is a basic multicellular unit (BMU)? Explain...Ch. 6.7 - Prob. 31AYPCh. 6.8 - What are the four steps of bone repair?Ch. 6.8 - Prob. 33AYPCh. 6.8 - Distinguish between the location and composition...Ch. 6.8 - Prob. 35AYPCh. 6.9 - Prob. 36AYPCh. 6.9 - Prob. 37AYPCh. 6.9 - Prob. 38AYPCh. 6.9 - Prob. 39AYPCh. 6.10 - What effect does aging hove on the quality and...Ch. 6.10 - Prob. 41AYPCh. 6 - Prob. 1RACCh. 6 - Chondrocytes are mature cartilage cells within the...Ch. 6 - Which of these statements concerning cartilage is...Ch. 6 - Prob. 4RACCh. 6 - Prob. 5RACCh. 6 - Prob. 6RACCh. 6 - Prob. 7RACCh. 6 - Prob. 8RACCh. 6 - Prob. 9RACCh. 6 - Prob. 10RACCh. 6 - Prob. 11RACCh. 6 - The periosteum a. is an epithelial tissue...Ch. 6 - Prob. 13RACCh. 6 - Prob. 14RACCh. 6 - Prob. 15RACCh. 6 - Prob. 16RACCh. 6 - Prob. 17RACCh. 6 - During growth in length of a long bone, cartilage...Ch. 6 - Prob. 19RACCh. 6 - Prob. 20RACCh. 6 - Prob. 21RACCh. 6 - Bone remodelling can occur When woven bone is...Ch. 6 - Given these processes: (1) cartilage ossification...Ch. 6 - Which of these processes during bone repair...Ch. 6 - Prob. 25RACCh. 6 - Prob. 1CTCh. 6 - Explain why running helps prevent osteoporosis in...Ch. 6 - Prob. 3CTCh. 6 - Prob. 4CTCh. 6 - Prob. 5CTCh. 6 - Prob. 6CT
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- State the specific effect of each hormone on blood calcium homeostasis and which hormone raises blood calcium and which hormone lowers it?arrow_forwardExplain the activation of vitamin D to calcitriol.arrow_forward. Parathyoid hormone (or PTH) is produced by what glands, which are located where, and what are the primary effects of this hormone? Does calcitonin stimulate the activity of osteoblasts or osteoclasts?arrow_forward
- Calcitonin has the following biological effects, except:A. Inhibition of vitamin D activityB. Decreased Ca level in bloodC. Decreased phosphorus levels in bloodD. Inhibition of gastrin secretionE. Inhibits bone resorptionarrow_forwardHow does Parathyroid Hormone elevate blood calcium levels? by increasing the amount of CA2+ removed from the blood by the kidneys by decreasing the amount of CA2+ absorbed from the gut into the blood by increasing the number and activity of osteoclasts by increasing the number and activity of osteoblastsarrow_forwardExplain the functions, food sources of Calcium (Ca2+) ?arrow_forward
- State the effector and sensor of this system. Then choose if it utilizes a feedforward, negative feedback or positive feedback strategy.arrow_forwardChoose the Correct choice asaparrow_forwardDistress has several important impacts on homeostasis of calcium, which would include: Group of answer choices Reduced uptake of calcium from the intestines, even if Vitamin D was high Reduced blood flow through the kidneys and thus less ability for PTH to stimulate activation of Vitamin D Reduced blood flow through the skin and thus reduced ability to activate Vitamin D within the skin Reduced ability for PTH to bind to its receptors on osteoclasts, and thus decreased ability to liberate calcium from bones ( explain all question with proper answer and type the answer ) .arrow_forward
- Explain the roles of parathyroid hormone and calcitonin in the calcium level in the blood.arrow_forwardDescribe the effect of increased calcitonin secretion onblood calcium levels.arrow_forwarda. List three organ systems involved in the maintenance of blood calcium levels, and state the role of each organ system in the process. b. Is blood calcium regulation an example of negative feedback control or positive feedback control? Explain.arrow_forward
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