Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 50.5, Problem 1CC
Summary Introduction
To explain: The individual as per the figure developed growth hormone disorder before or after puberty.
Introduction: Growth hormone is produced by the anterior lobe of pituitary gland. Growth hormone (GH) helps in stimulating the growth in vertebrates. An excessive amount of GH is secreted by the anterior pituitary gland in rare cases. This leads to pituitary gigantism, a kind of disorder characterized by increased height in an individual.
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The conditions of gigantism and pituitary dwarfism are extreme opposite conditions of adult height.
What is the effect of growth hormone on each condition?
Your friend Bud has the talent to be a star basketball center—if only he weren’t 5 foot 8. Being well- intentioned but ignorant, you start injecting him with growth hormone as he sleeps each night. You. think this is a clever strategy, but after a time you notice that he hasn’t grown an inch. Instead, his jaw and forehead seem to have gotten disproportionately large and his hands and feet are swollen. Explain why the growth hormone didn’t make Bud grow taller and why it had the effect it did. What disease state do these changes mimic?
The parents of 14-year old Megan are concerned about her height because she is only 4 fee tall and they are both close to 6 feet tall. After tests by their doctor, certain hormones are prescribed for the girl. What is the probable diagnosis? What hormones are prescribed, and why might the girl expect to reach normal height?
Chapter 50 Solutions
Biology
Ch. 50.2 - Prob. 1CSCh. 50.3 - Prob. 1CSCh. 50.3 - Prob. 1EQCh. 50.3 - Prob. 2EQCh. 50.3 - Prob. 3EQCh. 50.4 - Prob. 1CCCh. 50.4 - Prob. 1CSCh. 50.4 - Prob. 2CCCh. 50.5 - Prob. 1CCCh. 50.5 - Prob. 2CC
Ch. 50 - Which is the defining feature of hormones? a. They...Ch. 50 - Steroid hormones are synthesized from ______blank...Ch. 50 - Prob. 3TYCh. 50 - Prob. 4TYCh. 50 - Prob. 5TYCh. 50 - Prob. 6TYCh. 50 - Which of the following pairs of hormones are...Ch. 50 - In invertebrates, molting of larvae is stimulated...Ch. 50 - Which of the following is true of the adrenal...Ch. 50 - Prob. 10TYCh. 50 - Prob. 1CQCh. 50 - Distinguish between type 1 and type 2 diabetes...Ch. 50 - Core Concept: Systems Organ systems often exert...Ch. 50 - Discuss the roles of hormones in growth and...Ch. 50 - Prob. 2COQ
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- Why does the release of cortisol during the stress response have a negative effect on bone density? Cortisol increases serum calcium to fuel muscle contraction during the fight or flight responseCortisol reduces estrogen production and triggers early menopause Cortisol draws calcium out of the bones to increase serum calcium to fuel muscle contraction during the fight or flight response Cortisol decreases calcium to fuel muscle contraction during the fight or flight responsearrow_forwardSelect ALL the statements that are correct. Growth hormone production is inhibited by somatostatin. Growth hormone production is stimulated by the release of the tropic hormone GHRH in the hypothalamus. Growth hormone production is inhibited by IGF-1 which is secreted by the liver. Gigantism and acromegaly differ in that gigantism is due to oversecretion of GHRH, not GH.arrow_forwardOn your own words, identify the effect of hormones on the growth of bones in the human bodyarrow_forward
- Discuss how androgen therapy affects long bone development.arrow_forwardExplain why a 30-year-old short person cannot be made taller by taking a growth hormone.arrow_forwardSelect the best answer or answers from the choices given: Parathyroid hormone (a) increases bone formation and lowers blood calcium levels, (b) increases calcium excretion from the body, (c) decreases calcium absorption from the gut, (d) demineralizes bone and raises blood calcium levels.arrow_forward
- What is the most lethal bone tumor in children?arrow_forwardwe learned that the pituitary gland produces hormones; these hormones are essential to the proper functionality of the body. Choose one hormone to eliminate and discuss the possible repercussions to the body. What would happen if a child didn’t have the hormone? What about an adult?arrow_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_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_forwardThe mechanism by which estrogen prevents bone loss (as observed in post-menopausal osteoporosis) is to :A: stimulate osteoblasts to produce RANKC: stimulate osteoblasts to produce OPGD: inhibit osteoblasts from producing RANKE: inhibit osteoblasts from producing RANK-Larrow_forwardList the Hormones That Favor Increased Bone Resorption and DecreasedBone Mass?arrow_forward
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