Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 17, Problem 19RQ
When blood calcium levels are low, PTH stimulates ________.
- urinary excretion of calcium by the kidneys
- a reduction in calcium absorption from the intestines
- the activity of osteoblasts
- the activity of osteoclasts
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Chapter 17 Solutions
Anatomy & Physiology
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- Why might a person suffering from osteoporosis benefit from increased calcium ingestion?arrow_forwardWhich glands are involved in calcium regeneration and how they regulate calcium? (Subject: Clinical biochemistry)arrow_forwardTo determine: The effect of calcitonin on blood calcium levels when the release of this hormone is controlled by negative feedback mechanism.arrow_forward
- Describe how the appendicular skeleton is formed in the body and discuss the effect of human growth hormone on bone disorders. [Approximately 400 wordsarrow_forwardIndicate of the statements are TRUE or FALSE. Statements TRUE FALSE Production of blood cells is NOT a function of skeletal system. Thyroid hormone may produce either osteogenesis or osteolysis. Bone matrix is composed primarily of Calcium and Magnesium which maybe withdrawn in small amounts as needed elsewhere in the body. Remodelling of bone is a function of osteoclasts and osteoblasts. A combination of the hormone, adrenal cortisol, and the bone cell, osteoclast, may result in osteoporosis. The addition of bone to its outer surface resulting in growth in diameter is called apposional growth. Once an individual reaches skeletal maturity, the bones undergo years of metabolic rest. Mitosis resulting in elongation of bone occurs at the articular cartilage. Most bones of the body are formed by intramembranous ossification.arrow_forwardHormone replacement does not inhibit bone reabsorption in osteoporotic patients? Truearrow_forward
- Hormone Abbreviation Gland which secretes the hormone Function Target cell Related diseases Adrenocorticotropic hormone Aldosterone Antidiuretic hormone Calcitonin Corticosteroidarrow_forwardOsteoarthritis refers to _______. A inflammation of the joints due wear and tear on the cartilage with aging B bone pain caused by an autoimmune disease that destroys osteons C a decrease in bone mineral density due to insufficient dietary calcium and vitamin D D microfractures in vertebrae caused by excessive osteoclast activityarrow_forwardA patient has a tumor on the parathyroid that is increasing its hormone production. What effects might you see? (More than one answer may be correct) Osteoporosis Low circulating calcium levels Hyperactivity of the muscles Low blood pressurearrow_forward
- The hormone _______ causes _______ in the osteoclast activity that results in ____ of calcium ion concentration in the bloodstream Group of answer choices parathyroid hormone, decrease, increase calcitonin, increase, increase parathyroid hormone, increase, increase calcitonin, decrease, decrease 1,25-dihydroxyvitamin D, decrease, increase 1,25-dihydroxyvitamin D, increase, decreasearrow_forwardHormones that stimulate muscle fibers to uptake amino acids and synthesize proteins include _______. insulin and growth hormone adrenocorticotropic hormone and cortisol glucagon and aldosterone cortisol, epinephrine, and growth hormonearrow_forwardAll of the following result in decreased calcium levels in the bloodstream except... calcitonin inhibition of osteoclasts pth stimulation of osteoclasts increased calcitonin levvels decreased pth or calcitriol levelsarrow_forward
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