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 53CTQ
Retinitis pigmentosa (RP) is a disease that causes deterioration of the retinas of the eyes. Describe the impact RP would have on melatonin levels.
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Retinitis pigmentosa (RP) is a disease that causesdeterioration of the retinas of the eyes. Describe the impactRP would have on melatonin levels
List three possible functions of melatonin.
The human sleep-wake cycle is regulated by melatonin. The synthesis of melatonin is regulated by light exposure (Figure 1). The human body typically develops a sleep-wake rhythm that does not respond quickly to change. Long-term exposure to extended periods of bright light after sunset is most likely to affect a person in which of the following ways?
a) Melatonin synthesis will be increased, and the person will quickly fall asleep.
b) Melatonin synthesis will be inhibited, and the person will have difficulty sleeping.
c) Melatonin synthesis will be inhibited, and the person will quickly fall asleep.
d) Melatonin synthesis will be increased, and the entire sleep-wake cycle will be shifted by several hours.
Chapter 17 Solutions
Anatomy & Physiology
Ch. 17 - Visit this link...Ch. 17 - Visit this link...Ch. 17 - Visit this link...Ch. 17 - Visit this link...Ch. 17 - Visit this link...Ch. 17 - Endocrine glands ________. secrete hormones that...Ch. 17 - Chemical signaling that affects neighboring cells...Ch. 17 - A newly developed pesticide has been observed to...Ch. 17 - A small molecule binds to a G protein, preventing...Ch. 17 - A student is in a car accident, and although not...
Ch. 17 - The hypothalamus is functionally and anatomically...Ch. 17 - Which of the following is an anterior pituitary...Ch. 17 - How many hormones are produced by the posterior...Ch. 17 - Which of the following hormones contributes to the...Ch. 17 - Which of the following statements about the...Ch. 17 - The secretion of thyroid hormones is controlled by...Ch. 17 - The development of a goiter indicates that...Ch. 17 - Iodide ions cross from the bloodstream into...Ch. 17 - When blood calcium levels are low, PTH stimulates...Ch. 17 - Which of the following can result from...Ch. 17 - The adrenal glands are attached superiorly to...Ch. 17 - What secretory cell type is found in the adrenal...Ch. 17 - Cushings disease is a disorder caused by ________....Ch. 17 - Which of the following responses s not part of the...Ch. 17 - What cells secrete melatonin? melanocytes...Ch. 17 - The production of melatonin is inhibited by...Ch. 17 - The gonads produce what class of hormones? amine...Ch. 17 - The production of FSH by the anterior pituitary is...Ch. 17 - The function of the placental hormone human...Ch. 17 - If an autoimmune disorder targets the alpha cells,...Ch. 17 - Which of the following statements about insulin is...Ch. 17 - The walls of the atria produce which hoimone?...Ch. 17 - The end result of the RAAS is to ________. reduce...Ch. 17 - Athletes may take synthetic EPO to boost their...Ch. 17 - Hormones produced by the thymus play a role in the...Ch. 17 - The anterior pituitary gland develops from which...Ch. 17 - In the elderly, decreased thyroid function causes...Ch. 17 - Describe several main differences in the...Ch. 17 - Compare and contrast endocrine and exocrine...Ch. 17 - True or false: Neurotransmitters are a special...Ch. 17 - Compare and contrast the signaling events involved...Ch. 17 - Describe the mechanism of hormone response...Ch. 17 - Compare and contrast the anatomical relationship...Ch. 17 - Name the target tissues for prolactin.Ch. 17 - Explain why maternal iodine deficiency might lead...Ch. 17 - Define hyperthyroidism and explain why one of its...Ch. 17 - Describe the role of negative feedback in the...Ch. 17 - Explain why someone with a parathyroid gland tumor...Ch. 17 - What are the three regions of the adrenal cortex...Ch. 17 - If innervation to the adrenal medulla were...Ch. 17 - Compare and contrast the short-term and long-term...Ch. 17 - Seasonal affective disorder (SAD) is a mood...Ch. 17 - Retinitis pigmentosa (RP) is a disease that causes...Ch. 17 - Compare and contrast the role of estrogens and...Ch. 17 - Describe the role of placental secretion of...Ch. 17 - What would be the physiological consequence of a...Ch. 17 - Why is foot care extremely important for people...Ch. 17 - Summarize the role of GI tract hormones following...Ch. 17 - Compare and contrast the thymus gland in infancy...Ch. 17 - Distinguish between the effects of menopause and...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Match the endocrine control concepts.arrow_forwardMatch the hormone source with the closest description.arrow_forwardWhich hormones produced in the posterior and anterior lobes of the pituitary gland have the targets indicated? Below, fill in the blanks using the abbreviations noted in Section 15.3.arrow_forward
- Briefly describe the importance of melatonin.arrow_forwardWhat is the impact of retinitis pigmentosa on melatonin levels?arrow_forward1.) Draw a Venn diagram that compares the structure and function of the adrenal medulla and adrenal cortex. If possible , paste your answer into the space provided below . 2.) Complete the following flow chart that outlines both the short- and long-term stress responses. Image down.arrow_forward
- Tumors of the adrenal medulla, called pheochromocytomas, cause hypersecretion of catecholamines. Describe the expected signs and symptoms of this tumor.arrow_forwardNeuroendocrine glands are glands that are made up of both nervous tissue and endocrine tissue. This means that they can be directly stimulated by the nervous system to produce or release hormones. The pituitary gland and parathyroid gland are examples.Describe a situation/example for each (pituitary gland and parathyroid gland) that demonstrates the function mentioned above. Be specific.arrow_forwardThe pituitary gland is often referred to as the master gland. Set aside the fact that this term is sexist and hegemonic. Instead, consider this definition from the Merriam Webster dictionary “being a device or mechanism that controls the operation of another mechanism.” Using examples from the anterior and posterior pituitary, explain how this definition could be appropriate.arrow_forward
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